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

aaronq · Answer

the number of protons determines the atomic number of an element

protons + neutrons = mass number

anonymous · Answer

D!