Question

What is the electronic configuration of
an atom that has a proton number of 5
and a mass number of 11?​

Answer 1

Answer:As we know, atomic number is the total no of proton present in nucleus of an atom and atomic mass number is the total no of proton and neutron.

So boron have atomic number 5 and mass number 5+6=11. Therefore, K shell will accommodate 2 electrons and L shell will accommodate remaining electrons i.e 3. The electronic configuration is 2, 3.

hope it helps u dear...

Answer 2

Answer:

boron

the electronic configuration is 2,3