Chapter 6, Problem 100A

(a)

Interpretation Introduction

Interpretation: To calculate the no. of filled p-orbitals in the element.

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 100A

Filled p-orbital is 2

Explanation of Solution

The element is carbon. Its atomic number is 6 and its configuration is as shown,

  $\text{C}\left(6\right):1s^{2}2s^{2}2p^2$

So, filled p-orbital is 2.

(b)

Interpretation Introduction

Interpretation: To calculate the no. of filled p-orbitals in the element.

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 100A

3

Explanation of Solution

The element is phosphorous. Its atomic number is 15 and its configuration is as shown,

  $\text{P}\left(15\right):1s^{2}2s^{2}2p^{6}3s^{2}3p^3$

So, the filled p-orbital is 3.

(c)

Interpretation Introduction

Interpretation: To calculate the no. of filled p-orbitals in the element.

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 100A

3

Explanation of Solution

The element is oxygen. Its atomic number is 8 and its configuration is as shown,

  $\text{O}\left(8\right):1s^{2}2s^{2}2p^4$

So, filled p-orbital is 3.

(d)

Interpretation Introduction

Interpretation: To calculate the no. of filled p-orbitals in the element.

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 100A

3

Explanation of Solution

The element is nitrogen. Its atomic number is 7 and its configuration is as shown,

  $\text{N}\left(7\right):1s^{2}2s^{2}2p^3$

So, filled p-orbital is 3.