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Tardigrade
Question
Chemistry
The elements with atomic number 10,18,36,54, and 86 are all
Q. The elements with atomic number 10,18,36,54, and 86 are all
1353
200
Classification of Elements and Periodicity in Properties
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A
Light metals
2%
B
Rare earths
4%
C
Halogens
7%
D
Inert gases
87%
Solution:
Inert gases, these have
n
s
2
n
p
6
configuration.