Which is a false statement about elements?
a. each element has its own proton number.
b. each element has its own atomic number.
c. each element has its own neutron number.
d. each element has its own chemical symbol.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

i believe the answer is three water molecules