Question

The element of lower nuclear charge out of Na and Mg

Answer 1

Sodium has lower nuclear charge than Magnesium

Answer 2

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mg ( magnesium) - atomic number (12)

be( berylium) - atomic number (4)

➡be and mg lie in || A group

➡in groups the nuclear charge decreases

so

⭐be ( berylium). has highest nuclear charge

⭐ mg ( magnesium) has lowest nuclear charge ➡(ur answer

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