Atomic structure

Draw the geometrical atomic structure representing the electronic configuration of atoms of elements of [a] Period- 2 [i] group 14[IVA] - carbon [at. no. 6] [ii] group 15[VA] - nitrogen [at. no. 7] [iii] group 16 [VIA] - oxygen [at. no. 8] [b] Period - 3 [i] group 1[IA] - sodium[at. no. 11] [ii] group 2[IIA] - magnesium[at. no. 12] [iii] group 17[VIIA] - chlorine[at. no. 17] [c] Period - 4 [i] group 2[IIA] - calcium [at. no. 20].

Given below are the electrode potential values, E^(Theta) for some of the first row of transition elements : Explain the irregularities in these values on the basis of electronic structure of atoms.

The formal charge on S atom in the following structure is

Elements A and B crystallize in cubic structure where atoms A are at the corners of cube and B atoms are at the alternate faces. What is the formula of compound ?

The structure of chloramphenicol given below If number of chiral carbon atoms in this structure is X and number of sp^(2) hybridised carbon atoms is Y. The sum of X+Y is equal to?

(a) What is the C.N. of Cr atom in bcc structure ? (b) Cobalt metal crystallises in a hexagonal closest packed structure. What is the C.N. of cobalt atom? (c) Describe the crystal structure of Pt, which crystallises with four equivalent atoms in a cubic unit cell

A crystal is formed by two elements X and Y in cubic structure. X atoms are at the corners of a cube while Y atoms are at the face centre . The formula of the compound will be

A compound is formed by elements A and B . This crystallises in the cubic structure when atoms A are at the corners of the cube and atoms B are at the centre of the body.The simplest formula of the compound is

A compound is formed by elements A and B . This crystallises in the cubic structure when atoms A are at the corners of the cube and atoms B are at the centre of the body.The simplest formula of the compound is

A compound is made up of two elements A & B, having cubic structure. Atoms A occupy corners as well as face centre whereas atoms B occupy edge centre as well as body centre. What is formula of the compound ?