Chapter 12, Problem 98E

(a)

Interpretation Introduction

Interpretation:Whether below electronic configuration is in excited state or not should be determined. Atoms and ground state configuration should be given.

  $1s^{2}2s^{2}3p^1$

Concept introduction:For an atom to be in excited state means that it has been moved from lower energy level to higher energy level. From an electronic configuration if the electron is present in next orbital despite being filled the earlier one. That electron is considered to be excited state.

(b)

Interpretation Introduction

Interpretation:Whether below electronic configuration is in excited state or not should be determined. Atoms and ground state configuration should be given.

  $1s^{2}2s^{2}2p^6$

Concept introduction:For an atom to be in excited state means that it has been moved from lower energy level to higher energy level. From an electronic configuration if the electron is present in next orbital despite being filled the earlier one. That electron is considered to be excited state.

(c)

Interpretation Introduction

Interpretation:Whether below electronic configuration is in excited state or not should be determined. Atoms and ground state configuration should be given.

  $1s^{2}2s^{2}2p^{4}3s^1$

Concept introduction:For an atom to be in excited state means that it has been moved from lower energy level to higher energy level. From an electronic configuration if the electron is present in next orbital despite being filled the earlier one. That electron is considered to be excited state.

(d)

Interpretation Introduction

Interpretation:Whether below electronic configuration is in excited state or not should be determined. Atoms and ground state configuration should be given.

  $\left[\text{Ar}\right]4s^{2}3d^{5}4p^1$

Concept introduction:For an atom to be in excited state means that it has been moved from lower energy level to higher energy level. From an electronic configuration if the electron is present in next orbital despite being filled the earlier one. That electron is considered to be excited state.