In the d-block of the periodic table, the elements of groups 7, 8, and 9 generally do not form hydrides (the hydride gap). However, an exception exists in Group 6 where only one metal forms a stable m

Question

In the d-block of the periodic table, the elements of groups 7, 8, and 9 generally do not form hydrides (the hydride gap). However, an exception exists in Group 6 where only one metal forms a stable metallic hydride. What is the atomic number of this specific Group 6 metal?

Prashant Kotian · Accepted Answer

Correct answer: 24. In Group 6, only Chromium () forms a metallic hydride (). The atomic number of Chromium is .

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