HARD
JEE Main
IMPORTANT
Earn 100
First ionisation enthalpy values of first four group 15 elements are given below. Choose the correct value for the element that is a main component of apatite family :
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Important Questions on The p-Block Elements
EASY
JEE Main
IMPORTANT
A group 15 element forms bоnd with transition metals. It also forms hydride, which is a strongest base among the hydrides of other group members that form bоnd. The atomic number of the element is________.
