|
How many electrons are present in M shell of an element with atomic number 20? |
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|
(a) |
8 |
(b) |
6 |
(c) |
18 |
(d) |
2 |
|
How many electrons are present in M shell of an element with atomic number 20? |
|||||||
|
(a) |
8 |
(b) |
6 |
(c) |
18 |
(d) |
2 |