Question

If an element has atomic no 23 and mass no 40 find its proton ,electron and neutron​

Answer 1

Answer:

17 is the no of proton

Step-by-step explanation:

40-23

Answer 2

No.of electron=no. of proton=Atomic no.

Atomic no.=23

So,No of electrons=23

No. of protons=23

No. of Neutron=Atomic mass–No. of protons

=》40-23=17