If an atom is represented as 2311X, which of ...
If an atom is represented as 2311X, which of the following deduction is correct?
it contains 12 protons
it forms a covalent chloride
its atomic number is 23
it is an alkali metal
Correct answer is D
Sodium has atomic / proton number of 11 and belongs to Group 1[alkali metals] on the periodic table
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