Question

For the elements 13AL27,find 0ut the following. a) Number of neutrons

Answer 1

${\huge {\mathfrak {Answer :-}}}$

✨Al is Aluminium.

It's atomic no. is 13.

✨Hence, no. of neotrons = 27 - 13 = 14.

Done.. ✔️

Thanks..

Answer 2

mass no. =neutron+proton

in uncharged species, no. of proton=no.of neutron=atomic no. in periodic table

so here proton = 13

from above equation neutron=27-13=14