Question

An atom has amas number 88 and atomic number 38 how many protons and neutrons does it have ?

Answer 1

Strontium: 38 protons, 50 neutrons.

Explanation:

The atomic mass is the combined weight of all protons, and electrons. A proton has an atomic mass of approx. 1, neutron approx. 1, and an electron is negligibly small. The atomic number is the number on the periodic table, and is always equal to the number of protons. Your atom is strontium and has 38 protons. To find neutrons do Atomic mass-atomic number.

Answer 2

`38` protons and `50` neutrons

Explanation:

• Mass number = Neutrons + Protons
• For a neutral atom: Atomic number = Electrons = Protons

So,

Protons`= 38`

Neutrons = Mass number - Protons`= 88 - 38 = 50`