What is the atomic number of an element in the period table mean?
A. number of protons
B. number of electrons
C. number of neutrons
D. number of molecules
Question & Answer
What is the atomic number of an element in the period table mean?
1 Answer
Verified archiveA. number of protons
Atomic number means the number of protons – but also secretly number of electrons – on the periodic table, the elements are considered to be in their neutral state