Question

which element have 2 shells and 2 shell also full​

Answer 1

Answer:

B Boron

electronic configuration is =2,3 Atomic number =5. The element is B Boron. (e) Twice as many electrons in its second shell as in its first shell. The first shell can have maximum 2 electrons.

Answer 2

Explanation:

electronic configuration is =2,3 Atomic number =5. The element is B Boron. (e) Twice as many electrons in its second shell as in its first shell. The first shell can have maximum 2 electrons