Question

Elements of which group form electron precise hydride

Answer 1

Answer:

Electron- precise compounds of hydrogen :- The elements which form hydrides have exact number of electrons required for forming bond. Example of such elements are C and Si.They form CH4 and SiH4.The electrons are Precise and hence they are called as electron- precise compounds of hydrogen.

Answer 2

Answer:

group 14

Ammonia $$NH_3$$ and water $$H_2O$$ are electron-rich hydrides. Elements of group 14 form electron-precise (having required number of electrons to write the Lewis structure ) form precise hydrides.