Question

8 protons 9 neutrons 10 electrons what is it's mass

Answer 1

Answer:

mass includes units of sum of only protons and neutrons and protons, since mass of electron is negligible.

Explanation:

thus, mass equals..

8+9= ,17u.

Answer 2

Answer:

Atomic mass is the summation of protons and neutrons present inside the nucleus.

Atomic Mass=Protons+Neutrons=8+9=17

Hope it helps u....