Question

Of the element sodium nickel gold and nitrogen is non metal

Answer 1

Answer:

in the given option nitrogen is non-metal.

Answer 2

Of the element sodium, nickel, gold, and nitrogen, we know that nitrogen is non-metal.

Explanation:

• Atomic number of sodium is 11 and its electronic distribution is 2, 8, 1. As it contains only one valence electron therefore, there is only one electron present in its outermost shell.

• Therefore, it belongs to group 1 of the periodic table. Hence, it is a metal. Nickle has atomic number 28 and its electronic configuration is $[Ar]4s^{2}3d^{8}$. As it is a d-block element so, it is a transition element.

• Atomic number of gold is 79 and its electronic configuration is [Xe] 4f^{14} 5d^{10} 6s^{1}[/tex]. It is also d-block element and hence it is a transition element.

• Atomic number of nitrogen is 7 and its electronic distribution is 2, 5. It belongs to group 15 of the periodic table and as it need 3 more electrons to complete its octet. Hence, it is a non-metal.

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