Boron cannot form which one of the following anions?
(1) BO2-
(2) BF63-
(3) BH4-
(4) B(OH)4-
Due to absence of low lying vacant d orbital in B, sp3d2hybridization is not possible hence BF63-will not formed.
The force that a neutron exerts on a proton inside an atom is:
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