Question

How many orbitals are there in the third shell (n=3)?

Answer 1

The third shell contanis one s orbital,three p orbitals and five d orbitals.Each orbital hold 2 electron so the total number of electron which can be accommodate in third shell are 18 electrons

Answer 2

Answer:

9

Explanation:

Hello,

In this case, since the third shell of electrons has  the following 3 subshells:

$3s, 3p \ and \ 3d$

- The $s$ subsehll has one orbital for one pair of electrons: $s^1 \ and \ s^2$.

- The $p$ subsehll has three orbitals for three pairs of electrons: $p^1, \ p^2,\ p^3, \ p^4,\ p^5\ and \ p^6$.

- The $d$ subsehll has five orbital for five pairs of electrons $d^1, \ d^2,\ d^3, \ d^4,\ d^5,\ d^6,\ d^7,\ d^8,\ d^9\ and \ d^{10}$.

Therefore, the total number of orbitals when n=3 is:

$1+3+5=9$

Best regards.