Question

Number of electrons in L-Shell exceeds the sum of the number of electrons inK-shell and M-shell by 4. Answer the following questions.1) What is the outermost shell?2) How many electrons are there in its outer most shell ?3) What is the atomic number of element?4) Write the electronic configuration of the element?​

Answer 1

Answer:

1=,shell m

2=4

3=beryllium atomic number=4

4=beryllium 4(be)4 k =2 l = 2