1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
A Helium (Z = 2) No worries! We‘ve got your back. Try BYJU‘S free classes today! B Zinc (Z = 30) Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses C Argon (Z = 18) Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses D Neon (Z = 10) No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution The correct options are So, Helium has its shell completely filled with 2 electrons. Neon has its shells completely filled as it has 10 electrons in 2 shells K and L, which can accommodate 2 and 8 electrons respectively. Argon has 18 electrons in 3 shells and is a Noble gas. But the maximum number of electrons that can be accommodated in 3 shells is 2 + 8 + 18 = 28.
B Zinc (Z = 30)
C Argon (Z = 18)
The formula to find the maximum number of electrons that can be accommodated in a shell = 2n2 where ‘n’ is the number of the given shell from the nucleus.
For example, the maximum number of electrons that can be filled in the:
First shell (K - Shell) = 2(1)2 = 2 electrons.
Second shell (L - Shell) = 2(2)2 = 8 electrons.
Third shell (M - Shell) = 2(3)2 = 18 electrons.
So Argon and Zinc don't have completely filled shells.
Similar questions View More
Join BYJU'S Learning Program
Related Videos
CHEMISTRY
Watch in App
Explore more