Chapter 5, Problem 21CR

Interpretation Introduction

(a)

Interpretation:

To determine the name and atomic number of Mg.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Mg is magnesium and its atomic number 12.

Explanation of Solution

The Mg is the symbol of magnesium and its atomic number is 12.The atomic number is equal to the number of proton and it is belong to the group-2.

Interpretation Introduction

(b)

Interpretation:

To determine the name and atomic number of Ga.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Ga is gallium and its atomic number 31.

Explanation of Solution

The Ga is the symbol of gallium and its atomic number is 31.The atomic number is equal to the number of proton and it is belong to the group-13.

Interpretation Introduction

(c)

Interpretation:

To determine the name and atomic number of Sn.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Sn is tin and its atomic number 50.

Explanation of Solution

The Sn is the symbol of tin and its atomic number is 50.The atomic number is equal to the number of proton and it is belong to the group-14.

Interpretation Introduction

(d)

Interpretation:

To determine the name and atomic number of Sb.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Sb is antimony and its atomic number 51.

Explanation of Solution

The Sb is the symbol of antimony and its atomic number is 51.The atomic number is equal to the number of proton and it is belong to the group-15.

Interpretation Introduction

(e)

Interpretation:

To determine the name and atomic number of Sr.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Sr is strontium and its atomic number 38.

Explanation of Solution

The Sr is the symbol of strontium and its atomic number is 38.The atomic number is equal to the number of proton and it is belong to the group-2.

Interpretation Introduction

(f)

Interpretation:

To determine the name and atomic number of Si.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Si is silicon and its atomic number 14.

Explanation of Solution

The Si is the symbol of silicon and its atomic number is 14.The atomic number is equal to the number of proton and it is belong to the group-14.

Interpretation Introduction

(g)

Interpretation:

To determine the name and atomic number of Cs.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Cs is cesium and its atomic number 55.

Explanation of Solution

The Cs is the symbol of cesium and its atomic number is 55.The atomic number is equal to the number of proton and it is belong to the group-1.

Interpretation Introduction

(h)

Interpretation:

To determine the name and atomic number of Ca.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Ca is calcium and its atomic number 20.

Explanation of Solution

The Ca is the symbol of calcium and its atomic number is 20.The atomic number is equal to the number of proton and it is belong to the group-2.

(I)

Interpretation Introduction

Interpretation:

To determine the name and atomic number of Cr.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Cr is chromium and its atomic number 24.

Explanation of Solution

The Cr is the symbol of chromium and its atomic number is 24.The atomic number is equal to the number of proton and it is belong to the d block element.

(J)

Interpretation Introduction

Interpretation:

To determine the name and atomic number of Co.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Co is cobalt and its atomic number 27.

Explanation of Solution

The Co is the symbol of cobalt and its atomic number is 27.The atomic number is equal to the number of proton and it is belong to the group d element.

Interpretation Introduction

(k)

Interpretation:

To determine the name and atomic number of Cu.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Cu is copper and its atomic number 29.

Explanation of Solution

The Cu is the symbol of copper and its atomic number is 29.The atomic number is equal to the number of proton and it is belong to the group d element.

Interpretation Introduction

(l)

Interpretation:

To determine the name and atomic number of Ag.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Ag is silver and its atomic number 47.

Explanation of Solution

The Ag is the symbol of silver and its atomic number is 47.The atomic number is equal to the number of proton and it is belong to the group d element.

Interpretation Introduction

(m)

Interpretation:

To determine the name and atomic number of U.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element U is uranium and its atomic number 92.

Explanation of Solution

The U is the symbol of uranium and its atomic number is 92.The atomic number is equal to the number of proton and it is belong to the f block elements.

Interpretation Introduction

(n)

Interpretation:

To determine the name and atomic number of As.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element As is arsenic and its atomic number 33.

Explanation of Solution

The As is the symbol of arsenic and its atomic number is 33.The atomic number is equal to the number of proton and it is belong to the group-15.

Interpretation Introduction

(o)

Interpretation:

To determine the name and atomic number of At.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element At is astatine and its atomic number 85.

Explanation of Solution

The At is the symbol of astatine and its atomic number is 85.The atomic number is equal to the number of proton and it is belong to the group-17.

Interpretation Introduction

(p)

Interpretation:

To determine the name and atomic number of Ar.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Ar is argon and its atomic number 18.

Explanation of Solution

The Ar is the symbol of argon and its atomic number is 18.The atomic number is equal to the number of proton and it is belong to the group-18.

Interpretation Introduction

(q)

Interpretation:

To determine the name and atomic number of Zn.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Zn is zinc and its atomic number 30.

Explanation of Solution

The Zn is the symbol of zinc and its atomic number is 30.The atomic number is equal to the number of proton and it is belong to the d block element.

Interpretation Introduction

(r)

Interpretation:

To determine the name and atomic number of Mn.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Mn is manganese and its atomic number 25.

Explanation of Solution

The Mn is the symbol of manganese and its atomic number is 25.The atomic number is equal to the number of proton and it is belong to the d block element.

Interpretation Introduction

(s)

Interpretation:

To determine the name and atomic number of Se.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Se is selenium and its atomic number 34.

Explanation of Solution

The Se is the symbol of selenium and its atomic number is 34.The atomic number is equal to the number of proton and it is belong to the group-16.

Interpretation Introduction

(t)

Interpretation:

To determine the name and atomic number of W.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element W is tungsten and its atomic number 74.

Explanation of Solution

The W is the symbol of tungsten and its atomic number is 74.The atomic number is equal to the number of proton and it is belong to the d block element.

Interpretation Introduction

(u)

Interpretation:

To determine the name and atomic number of Ra.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Ra is radium and its atomic number 88.

Explanation of Solution

The Ra is the symbol of radium and its atomic number is 88.The atomic number is equal to the number of proton and it is belong to the group-2.

Interpretation Introduction

(v)

Interpretation:

To determine the name and atomic number of Rn.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Rn is radon and its atomic number 86.

Explanation of Solution

The Rn is the symbol of radon and its atomic number is 86.The atomic number is equal to the number of proton and it is belong to the group-18.

Interpretation Introduction

(w)

Interpretation:

To determine the name and atomic number of Ce.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Ce is cerium and its atomic number 58.

Explanation of Solution

The Ce is the symbol of cerium and its atomic number is 58.The atomic number is equal to the number of proton and it is belong to the f block element.

Interpretation Introduction

(x)

Interpretation:

To determine the name and atomic number of Zr.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Zr is zirconium and its atomic number 40.

Explanation of Solution

The Zr is the symbol of zirconium and its atomic number is 40.The atomic number is equal to the number of proton and it is belong to the d block element.

Interpretation Introduction

(y)

Interpretation:

To determine the name and atomic number of Al.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Al is aluminum and its atomic number 13.

Explanation of Solution

The Al is the symbol of magnesium and its atomic number is 13.The atomic number is equal to the number of proton and it is belong to the group-13.

Interpretation Introduction

(z)

Interpretation:

To determine the name and atomic number of Pd.

Concept Introduction:

The modern periodic table is arranged according to the atomic number of the element and the symbol of the elements is given in the periodic table. Periodic table consist of 18 group and 7 period. Atomic number is equal to the number of proton. Mass number is equal to the sum of number of proton and number of neutron.

Like: Sodium: Symbol-Na, Atomic number-11.

Answer to Problem 21CR

The name of the element Pd is palladium and its atomic number 46.

Explanation of Solution

The Pd is the symbol of palladium and its atomic number is 46.The atomic number is equal to the number of proton and it is belong to the d block element.