Number of protons in the nucleus
Written as Z
For a neutral atom:
Atomic number = number of electrons
Example:
Carbon (Z = 6) → 6 protons & 6 electrons
Atomic Number (Z)
0
Number of protons in the nucleus
Written as Z
For a neutral atom:
Atomic number = number of electrons
Example:
Carbon (Z = 6) → 6 protons & 6 electrons
