Atomic part 3

What is hybridisation of central atom of anionic part of PBr_(5) in crystalline state

Which of the following statement does not form part of Bohr's model of the hydrogen atom?

In which of the following molecules, the number of possible angleXAX angles is maximum in the anionic part of their solid state ? [A : Central atom , X : Surrounding atom ]

coordination part 3

Hybridization of the central atom in the anionic part of the product formed when XeF_2 reacts with PF_5 is

total number of Boron atoms in anionic part of borax which participate in back bonding.

Which of the following complex has same oxidation state of the central metall atom in the cationic and anionic part ?

Density of lithium atom is 0.53 g//cm^(3) . The edge length of Li is 3.5 A^.The number of lithium atoms in a unit cell will be.. . (Atomic mass of lithium is 6.94)

The negative part of the addendum (the molecule to be added ) adds on to the carbon atom of the double bond containing the least number of hydrogen atoms. This rule is known as

In which part of a group would you separately expect the elements to have : the largest atomic size?