Who know how to do this thank you

Number of neutrons :

Argon=22

Boron=6

There are two components that accompany an element, the mass number and atomic number

Atoms are composed of 3 types of basic particles (subatomic particles): protons, electrons, and neutrons

The Atomic Number (Z) indicates the number of protons and electrons in an atom of an element.

Atomic number = number of protons = number of electrons ⇒ neutral number

Atomic mass is the sum of protons and neutrons

Atomic Number (Z) = Atomic mass (A) - Number of Neutrons

Argon has an atomic number of 18 and a mass number of 39,948

number of neutrons =

Boron has an atomic number of 5 and a mass number of 10,811

number of neutrons =

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).