Physics, asked by bobadevishvajeet2005, 9 hours ago

3Li,14 Si,2He,11Na,15P which of these elements belong to be period 3 ?

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Answered by ravulameghana1118

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Answer:

sodium , silicon , phosphorus belongs lo period 3 .

Explanation :

sodium belongs to s-blockand
silicon and phosphorus belongs to p-block of the periodic table.
Among these three,

Sodium is a Metal
Phosphorous is a Nonmetal
Silicon is a Metalloid

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