The sum of total number of electrons that can be accomodated in first, second and third energy shells is
A
18
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
20
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
24
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
28
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is D 28 In the solar system model, nucleus is at the centre of the atom. Moving away from the nucleus, the first energy shell can hold 2 electrons, the second shell can hold 8 electrons and the third shell can hold 18 electrons to the maximum.