What determines the atomic number of an atom?

A.
the number of neutrons in two atoms of an element

B.
the number of electrons in the outer layer of any atom

C.
the number of protons in every atom of an element

D.
the number of protons plus the number of neutrons in an atom

Question

What determines the atomic number of an atom?	
 
 A.
the number of neutrons in two atoms of an element
 
 B.
the number of electrons in the outer layer of any atom
 
 C.
the number of protons in every atom of an element
 
 D.
the number of protons plus the number of neutrons in an atom

anonymous · Answer

The number of proton in an element is equal to its atomic number in the periodic table.