Question

6. An element has 2 electrons in its N shell,
(i) What is its atomic number?
(ii) State its position in periodic table
(iii) Is it a metal or a non-metal ?
(iv) State the name assigned to this group.
(v) What is the valency of this element ?
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Answer 1

Answer:

CALCIUM (2,8,8,2)

i) Atomic number = 20.

ii) It is located in S block.

iii) It is a metal.

iv) Alkaline earth metals.

v) Valency of the element is 2.

Explanation:

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