The number of what and what are equal in the nucleus of a neutral atom?
Protons and neutrons.
Atomic number
The number of protons in the nucleus of an atom
Atomic mass (mass number)
The total number of protons and neutrons in an atom
Nucleons
Refer to the protons and neutrons in an atoms nucleus
Isotopes
Atomic nuclei that have the same number of protons but different number of neutrons
Transmutation
The process of changing one element into another
What is the nucleus of an atom represent with in nuclear notation?
A
X
Z
Z = A - N
A (atomic mass number total neutrons and protons)
X (element)
Z (atomic number number of protons in the nucleus)
N (number of neutrons in the nucleus)