Question

1. choose the best answer. refer to the periodic table.

what is the electron configuration for nitrogen?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰
1s²2s²2p⁶3s²3p¹
1s²2s²2p⁶3s²3p⁵
1s²2s²2p³

1. type the correct answers in the blanks. refer to the periodic table.

follow the steps to write the electron configuration for germanium.
how many electrons does germanium have? ____
what period is germanium in? ____
how many energy levels does germanium have? ____

Explanation:

Question 11

Step1: Determine the atomic number of nitrogen

Nitrogen has an atomic number of \(7\). This means it has \(7\) electrons.

Step2: Fill the electron orbitals

• The first shell (\(n = 1\)) can hold \(2\) electrons: \(1s^{2}\).
• The second shell (\(n=2\)):
• The \(2s\) sub - shell can hold \(2\) electrons: \(2s^{2}\).
• The remaining \(7-(2 + 2)=3\) electrons go into the \(2p\) sub - shell: \(2p^{3}\).

Step1: Find the atomic number of germanium

Germanium (\(Ge\)) has an atomic number of \(32\). Since the number of electrons in a neutral atom is equal to the atomic number, germanium has \(32\) electrons.

Step2: Determine the period of germanium

On the periodic table, germanium is in period \(4\).

Step3: Relate period number to energy levels

The period number of an element in the periodic table is equal to the number of energy levels (shells) of its atoms. So, germanium has \(4\) energy levels.

Answer:

\(1s^{2}2s^{2}2p^{3}\)

Question 12