The "Hydride Gap" is a specific region in the d-block of the periodic table where elements display a striking inability to form metallic (interstitial) hydrides. Which specific groups constitute this

Question

The "Hydride Gap" is a specific region in the d-block of the periodic table where elements display a striking inability to form metallic (interstitial) hydrides. Which specific groups constitute this gap, and what is the notable single-element exception nearby?

Prashant Kotian · Accepted Answer

Correct answer: B. The metals of groups 7, 8, and 9 of the periodic table do not form hydrides, leading to the designation "Hydride Gap". In the adjacent group 6, Chromium is the *only* element that forms a hydride ().

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