Arrangement of electrons

Question 1

Principal quantum number 1 shell

Answer 1

1 orbital in subshell

1s subshell(2 electrons

2 electrons in shell

Question 2

Principal quantum number 2 shell

Answer 2

4 orbitals

1s subshell (2 electrons)
3p subshell ( 6electrons)

Question 3

Principal quantum number 3 shell

Answer 3

9 orbitals

1s(2 electrons)
3p(6 electrons)
5d(10 electrons)

18 total electrons

Question 4

Principal quantum number 4 shell

Answer 4

16 orbitals

1s(2 electrons)
3p(6 electrons)
5d(10 electrons)
7f(14 electrons)

32