What is atom?

What is gram atomic mass?

What does atomic & ionic radius really mean to you?

What is the molecular atomicity of Phosphorus.

What do atomic radius vary in a peiod and ini a group? How do you explain the variation?

What is meant by covalency of an atom?

(i) The electronic configuration of an atom is [Z](n-2) f^(14)(n-1)d^(1)ns^(2) . What is the minimum position of the atom in the periodic table and correspondingly what is the atomic number of Z? (ii) Find the number of unpaired electrons in the atom of the element having atomic number 16. (iii) Which of the following ions does not obey Bohr's atomic theory? He^(2+),Li^(2+),B^(3+),Be^(3+) .

What is the meaning of Greek word 'Atom'?

What is meant by hybridisation of atomic orbitals?

What is the main principle of atom bomb ?

What is the orientation of the deactivating halogen atoms ?