Question

i need help on this
If a neutral atom has a mass of 12 amu and an atomic number of 5, determine the number of protons, neutrons, and electrons in the atom.

Answer 1

Atomic number is = to number of protons so 5.
Mass number is = protons + neutrons. Mass = 12. so 12 - 5 = 7 which gives the neutrons.
Finally providing the atom is not an ion ie neutally charhed the electrons will = the protons ie. 5

Answer 2

thank you you helped me :)

Answer 3

Anytime :)