Argon monatomic in nature because it is a noble gas and has completely filled shells and thus does not form a bond with other elements.
Answer:
7 is the mass number of li and 3 is the atomic number
a 3
b 7
c 3
d 4
Explanation:
IM PRETTY SURE IT IS D !! IF ITS WRONG IM SORRY THAT WHAT
I GOT
Its hydrogen atom is a high conductor of electricity