Question

what atom has 17 protons and 20 neutrons??

Answer 1

Answer:

It is nucleus which contain 17 protons and 20 neutrons...

thanks

Answer 2

Explanation:

As we know,

N + P= A

Neutrons + Protons= Atomic Number

17 + 20= 37

OR

Z= P= E

Mass no.= Proton= Electron

17= 17= 17

Therfore,

Chlorine (Cl) has the atomic no. 37

Chlorine(Cl) has atomic mass. 17