Question

Use the diagram to answer the following questions.

An illustration of the periodic table box for Mo. It's atomic number is 42 and the atomic mass is 96. The electrons are arranged in shells 1-5 in the following pattern; 2,8,18,13,1.

Atomic number:

Chemical symbol:

Number of protons:

Atomic mass:

Number of electrons:

Number of electrons in the outer shell:

Number of electrons in the n = 3 shell:

Number of neutrons :

Answer 1

Atomic number: 42

Chemical symbol: Mo

Number of protons: 42

Atomic mass: 96

Number of electrons: 42 (neutral atom)

Number of electrons in the outer shell: 1

Number of electrons in the n = 3 shell: 18

Number of neutrons: 96 − 42 = 54