Chapter 6.2, Problem 9SP

(a)

Interpretation Introduction

Interpretation:To write the electronic configuration of carbon.

Concept introduction:

The electron configuration of an element defines how its electrons are arranged throughout its atomic orbitals. Standard notation is used to represent atomic electron configurations, placing all electron-containing atomic subshells in sequential order. The number of electrons held by the subshell is indicated by superscript.

Answer to Problem 9SP

  $1s^{2}2s^{2}2p^2$

Explanation of Solution

The symbol of carbon is $\text{C}$ . Its atomic number is $6$ and it is in period 2 and group 14. It is a p-block element. Its electronic configuration is as shown:

  $\text{C}:1s^{2}2s^{2}2p^2$

(b)

Interpretation Introduction

Interpretation:To write the electronic configuration of strontium.

Concept introduction:

The electron configuration of an element defines how its electrons are arranged throughout its atomic orbitals. Standard notation is used to represent atomic electron configurations, placing all electron-containing atomic subshells in sequential order. The number of electrons held by the subshell is indicated by superscript.

Answer to Problem 9SP

  $1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{2}4p^{6}5s^2$

Explanation of Solution

The symbol of carbon is $\text{Sr}$ . Its atomic number is $38$ and it is in period 5 and group 2. It is an s-block element. Its electronic configuration is as shown:

  $\text{Sr}:1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{2}4p^{6}5s^2$

(c)

Interpretation Introduction

Interpretation:To write the electronic configuration of vanadium.

Concept introduction:

The electron configuration of an element defines how its electrons are arranged throughout its atomic orbitals. Standard notation is used to represent atomic electron configurations, placing all electron-containing atomic subshells in sequential order. The number of electrons held by the subshell is indicated by superscript.

Answer to Problem 9SP

  $1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^3$

Explanation of Solution

The symbol of carbon is $\text{V}$ . Its atomic number is $23$ and it is in period 4 and group 5. It is a d-block element. Its electronic configuration is as shown:

  $\text{V}:1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^3$