Question

what is the valency of co and nitrogen??

Answer 1

⭐⭐⭐⭐⭐ ANSWER ⭐⭐⭐⭐⭐

❄❄❄❄ VALENCY ❄❄❄❄

➡ The number of electrons donated or accepted or shared by the atom of an element to achieve stable electronic configuration (8 electrons in the outermost shell) is called its valency.

➡ In simple words, valency is the combining capacity of an atoms of an element.

➡ An atom which donates electrons is said to have a positive valency.

➡ Similarly, an atom which accepts electrons is said to have negative valency.

➡ Lithium, Sodium, Potassium, Zinc, Calcium, Aluminium, Chromium, etc. all are metals with positive valency.

➡ Chlorine, Bromine, Oxygen, Sulphur, Nitrogen, etc. alll are non-metals with negative valency.

⚡⚡⚡⚡⚡ ANSWER ⚡⚡⚡⚡⚡

➡ Both Cobalt and Nitrogen have variable valencies.

➡ VALENCY OF COBALT (Co) :- 2,3,4

➡ VALENCY OF NITROGEN (N) :- 3,4

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⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐

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Answer 2

Hola mate !!

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${\textit{Valency\:in\:Chemistry :-}}$

Valency is the number of atoms of an element which can combine or displace with one atom of Hydrogen ( H - a metal ) .

OR

Valency is the no.of electrons which an element requires to become neutral as to attain a stable electronic configuration as that if its nearest noble gas .

Valency of METALS is $<b>POSITIVE</b>$ .
Example :- Ca$²⁺$ , Al$³⁺$

Valency of NON-METALS is $<b>NEGATIVE</b>$ .
Example :- O$^2-$ , Cl$^1-$

$<big><big><b>YOUR ANSWER :-</big></big></b>$

▶Cobalt (Co) has variable valency which is $<b>^{2+ / 3+ / 4+</b>}$ .

▶Nitrogen (N) too has variable valency which is $<b>^{3+ / 4+</b>}$

HOPE HELPS !!!