Use the diagram to identify each item.

Atomic number: 42

Chemical symbol: Mo

Number of protons: 42

Atomic mass: 96

Number of electrons: 42

Number of electrons in the outermost shell: 1

Number of electrons in the n: 13

Number of neutrons: Atomic mass- Atomic number: 96 - 42 =54

Explanation:

atomic no. is 42

chemical symbol is Mo

no. of protons is 42

atomic mass is 95.95

no. of electrons is 42

no. of electron in outer most shell is 1

no of electrons in the n 3 shell is 18

no. of neutron is 96

pure substance: iron,copper

impure substance: water,charcoal