Question

Na, Mg, Al, Si, P, S, Cl and Ar are elements of 3rd period which of them is inert and why​

Answer 1

Explanation:

Argon

because it's outermost shell is fully complete

Answer 2

Ar is the inert gas.

• Noble gases are part of the periodic table's 18th category.
• Helium, neon, argon, krypton, xenon, and radon are among them.
• Because they are stable and non-reactive, they are referred to as inert gases.
• With eight electrons in its outermost (valence) shell, argon is extremely stable and chemically inert.
• Argon atoms do not react chemically with one another, nor have they been shown to do so with atoms of any other elements.

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