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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
1381
246
Classification of Elements and Periodicity in Properties
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A
Light metals
3%
B
Rare earths
5%
C
Halogens
10%
D
Inert gases
82%
Solution:
Inert gases, these have
n
s
2
n
p
6
configuration.