Chapter 6, Problem 48A

Interpretation Introduction

(a)

Interpretation:

The group, period, and block in which [Kr] 5s²4d¹ is located in the periodic table needs to be determined.

Concept introduction:

A periodic table consists of groups and periods. The horizontal rows are termed as periods and the vertical rows are termed as groups. The elements with similar properties are placed together in a group.

Answer to Problem 48A

Yttrium (Yt) has the electronic configuration [Kr] 5s²4d¹. It is located in group 3 of the d-block and in period 5.

Explanation of Solution

[Kr] 5s²4d¹is the given configuration. This configuration is seen to be located in d-block in group 3 and in period 5 on the periodic table.

On the basis od the location of the group and the period we can say that the element is Yttrium (Yt).

(b)

Interpretation Introduction

Interpretation:

The group, period, and block in which[Ar] 4s²3d¹⁰ 4p³is located in the periodic table needs to be determined.

Concept introduction:

A periodic table consists of groups and periods. The horizontal rows are termed as periods and the vertical rows are termed as groups. The elements with similar properties are placed together in a group.

Answer to Problem 48A

Arsenic (As) has the electronic configuration [Ar] 4s²3d¹⁰ 4p³. It is located in group 15 of the p-block and in period 4.

Explanation of Solution

[Ar] 4s²3d¹⁰ 4p³is the given configuration. This configuration is seen to be located in p-block in group 15 and in period 4 on the periodic table.

On the basis of the location of the group and the period we can say that the element is Arsenic (Ar).

(c)

Interpretation Introduction

Interpretation:

The group, period, and block in which [He] 2s²2p⁶is located in the periodic table needs to be determined.

Concept introduction:

A periodic table consists of groups and periods. The horizontal rows are termed as periods and the vertical rows are termed as groups. The elements with similar properties are placed together in a group.

Answer to Problem 48A

Neon (Ne) has the electronic configuration [He] 2s²2p⁶. It is located in group 18 of the p-block and in period 2.

Explanation of Solution

[He] 2s²2p⁶is the given configuration. This configuration is seen to be located in p-block in group 18 and in period 2 on the periodic table.

On the basis of the location of the group and the period we can say that the element is Neon (Ne).

(d)

Interpretation Introduction

Interpretation:

The group, period, and block in which [Ne] 3s²3p¹is located in the periodic table needs to be determined.

Concept introduction:

A periodic table consists of groups and periods. The horizontal rows are termed as periods and the vertical rows are termed as groups. The elements with similar properties are placed together in a group.

Answer to Problem 48A

Aluminium (Al) has the electronic configuration[Ne] 3s²3p¹. It is located in group 13 of the p-block and in period 3.

Explanation of Solution

[Ne] 3s²3p¹is the given configuration. This configuration is seen to be located in p-block in group 13 and in period 3 on the periodic table.

On the basis of the location of the group and the period we can say that the element is Aluminium (Al).