Question

Which of the following elements doesn't have neutron?
(a)
Protium
(b)
Nitrogen
(c)
Sulpur
(d)
Calcium​

Answer 1

Answer:

a) Protium .

Explanation:

There is only one stable atom that does not have neutrons. It is an isotope of the element hydrogencalled protium. 

Answer 2

Answer:

a)Protium

Explanation:

There is only one stable atom that does not have neutrons. It is an isotope of the element hydrogen called protium. Protium, which contains a single proton and a single electron, is the simplest atom. All other stable atoms contain some number of neutrons.