Respuesta :
Answer:
The mass of an atom is based on the number of protons and neutrons in its nucleus.
The mass of an atom is based on the number of protons and neutrons in its nucleus.
Answer:
The correct answer is option C.
Explanation:
Atomic number(Z) = Total number of protons present in a nucleus of an atom.
Atomic mass(M) = Sum of protons and neutrons present in the nucleus
M = Z + Total number of neutrons
If we are given with mass number of an element and we are said to determine the atomic number of the compound:
22 = Z + Total number of neutrons
Z = 22 - Total number of neutrons
We will require total number of neutrons to determine the atomic number of an unknown element that has a mass number of 22.