Updated By SaraNextGen
On March 11, 2024, 11:35 AM
Page No 53: - Chapter 4 Structure Of Atom class 9 ncert solutions Science - SaraNextGen [2024]
Question 1:
For the symbol H, D and T tabulate three sub-atomic particles found in each of them.
Answer:
|
Symbol |
Proton |
Neutron |
Electron |
|
H |
1 |
0 |
1 |
|
D |
1 |
1 |
1 |
|
T |
1 |
2 |
1 |
Question 2:
Write the electronic configuration of any one pair of isotopes and isobars.
Answer:
Two isotopes of carbon are 
and
.
The electronic configuration of is 2, 4.
The electronic configuration of is 2, 4.
[Isotopes have the same electronic configuration]
and 
are a pair of isobars
The electronic configuration of is 2, 8, 8, 2.
The electronic configuration of is 2, 8, 8.
Also Read : Page-No-54:-Chapter-4-Structure-Of-Atom-class-9-ncert-solutions-Science
