Question

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Answer 1

Answer:

A) 3

B) 4

C) 2, 1

D) Metal, because it lies in Group 1A

E) It will form a cation as it'll lose 1 electron

F) Li (Lithium)

Explanation:

A) As atomic number = Number of protons,

Then, atomic number = 3

B) As mass number = Number of protons + Number of neutrons

Then, mass number = 3 + 1 = 4

C) The first orbital can have only 2 electrons,

So, electron config. = 2, 1

D) The element is metal as it lies in the Group 1A which consists of alkali metals.

E) The element will form a cation because it's going to give electrons.

F) The element is Lithium. And its symbol is Li.

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