Question

The atomic number of krypton (Kr) is 36, and it’s mass number is 84. How many neutrons do you have?

Answer 1

`\huge\boxed{48 \text{ Neutrons}}`

Step-by-step explanation:

In an atom, the atomic number is equal to the number of protons in the nucleus. To find the neutron number of krypton, you simply need to subtract the atomic number from the mass number. Krypton has an atomic number of 36 and a mass number of 84. This gives you 48 neutrons.

1) Subtract 36 from 84.

`84-36=48`