(a) Interpretation: The reason for the atomic radius of anion to be always larger than that of the atom from which it is derived is to be explained. Concept Introduction: Atomic radius is half the distance between two molecules of an atom. Cation is formed by removal of electron/s from an atom and anions are formed by addition of electron/s in an atom. For same atoms, cationic radius is always less than that of the neutral atom and anionic radius is always greater than that of the neutral atom.

Question

vi. Answer true or false. (a) Elements in the same column of the Periodic Table have the same outer-shell electron configuration. (b) All Group 1A elements have one electron in their valence shell. (c) All Group 6A elements have six electrons in their valence shell. (d) All Group 8A elements have eight electrons in their valence shell. (e) Period 1 of the Periodic Table has one element, period 2 has two elements, period 3 has three elements, and so forth. (1) Period 2 results from filling the 2s and 2p orbitals and, therefore, there are eight elements in period 2. (g) Period 3 results from filling the 3s, 3p, and 3d orbitals and, therefore, there are nine elements in period 3. (h) The main-group elements are s block and p block elements.

Answer 1

Question

Chapter 2, Problem 58P

Interpretation Introduction

(a)

Interpretation:

The reason for the atomic radius of anion to be always larger than that of the atom from which it is derived is to be explained.

Concept Introduction:

Atomic radius is half the distance between two molecules of an atom. Cation is formed by removal of electron/s from an atom and anions are formed by addition of electron/s in an atom. For same atoms, cationic radius is always less than that of the neutral atom and anionic radius is always greater than that of the neutral atom.

Interpretation Introduction

(b)

Interpretation:

The reason for the atomic radius of cation to be always smaller than that of the atom from which it is derived is to be explained.

Concept Introduction:

Atomic radius is half the distance between two molecules of an atom. Cation is formed by removal of electron/s from an atom and anions are formed by addition of electron/s in an atom. For same atoms, cationic radius is always less than that of the neutral atom and anionic radius is always greater than that of the neutral atom.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Students have asked these similar questions

vi. Answer true or false. (a) Elements in the same column of the Periodic Table have the same outer-shell electron configuration. (b) All Group 1A elements have one electron in their valence shell. (c) All Group 6A elements have six electrons in their valence shell. (d) All Group 8A elements have eight electrons in their valence shell. (e) Period 1 of the Periodic Table has one element, period 2 has two elements, period 3 has three elements, and so forth. (1) Period 2 results from filling the 2s and 2p orbitals and, therefore, there are eight elements in period 2. (g) Period 3 results from filling the 3s, 3p, and 3d orbitals and, therefore, there are nine elements in period 3. (h) The main-group elements are s block and p block elements.

( a ) Eva l u a te t h e expre s s i o n s 2 * 1, 2 * 11 + 32,2 * 11 + 3 + 52, and 2 * 11 + 3 + 5 + 72. (b) How do the atomic numbers of the noble gases relate to the numbersfrom part (a)? (c) What topic discussed in Chapter 6 is thesource of the number “2” in the expressions in part (a)?

Fill in the blanks:(a) The symbol and atomic number of the heaviest nonradioac-tive noble gas are __and__ .(b) The symbol and group number of the Period 5 transition ele-ment whose atoms have the fewest protons are __ and __ .(c) The elements in Group 6A(16) are sometimes called thechalcogens.The symbol and atomic number of the first metallicchalcogen are__ and __ .(d) The symbol and number of protons of the Period 4 alkalimetal atom are __and __.