Question

odd man out
Na,Mg,Si,Al​

Answer 1

Answer:

Calcium

Explanation:

Explanation: Calcium is the odd one out from the list because, Sodium, Magnesium and Aluminium belong to 3rd period, but Calcium belongs to 4th period.

Answer 2

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Answer:

Na is the out because sodium is a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20ºC (68ºF). From the commercial point of view, sodium is the most important of all the alkaline metals. Sodium reacts quickly with water, and also with snow and ice, to produce sodium hydroxide and hydrogen and all other have different properties

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