Which atoms are indicated by the following configurations?
a) `[He]2s^1`
b)`[Ne]3s^2 3p^3`
C) `[Ar]4s^2 3d^1`.

Which of the following have d^0s^0 configuration Sc3+,Ti4+,V5+

An element having electronic configuration is 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 4s^(1) will form:

Which of the following orbitals are possible? 1p, 2s, 2p and 3f.

Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s^2 2s^2 2p^3 , the simplest formula for this compound is

The element having electronic configuration [Ar], 3d^5 , 4s^2 belongs to

The element 'X' has electronic configuration is 1s^2 , 2s^2 , 2p^6 , 3s^2 , 3p^6 , 4s^2 The element 'X' is

If the valence shell electronic configuration of an element is 3s^2 3p^1 in which block of periodic table is it placed ?

Considering x-axis as the inter nuclear axis, which out of the following will not form a sigma bond and why? a) 1s and 1s b) 1s and 2p_x c) 2p_y and 2p_y d) 1s and 2s

For the following G.P.'s find S_n . a ,b, b^2/a,b^3/a^2 , ………….

For the following G.P.'s find S_n p, q, q^2 / p , q^3 / p^2 , ………...