EASY
11th CBSE
IMPORTANT
Earn 100

Which of the following statements are correct ?
(a)The electronic configuration of (Atomic No. of )
(b)The magnetic quantum number may have a negative value.
(c)In silver atom, electrons have a spin of one type and of the opposite type (Atomic No. of ).
(d)The oxidation state of nitrogen in is .

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Important Questions on Structure of Atom
MEDIUM
11th CBSE
IMPORTANT

MEDIUM
11th CBSE
IMPORTANT

EASY
11th CBSE
IMPORTANT

MEDIUM
11th CBSE
IMPORTANT

EASY
11th CBSE
IMPORTANT

HARD
11th CBSE
IMPORTANT
Column I | Column II | ||
A | Light has dual character | p | de Broglie |
B | Electrons have dual character | q | Einstein |
C |
has electronic configuration and |
r | Aufbau |
D | orbital is filled first than | s | Hunds |
E | Basis of Quantum mechanics | t | Schrodinger |

HARD
11th CBSE
IMPORTANT
Column 1 | Column 2 | Column 3 |
(I) orbital | (i) | ![]() |
(II) orbital | (ii) One radial node | (Q) Probability density at nucleus |
(III) orbital | (iii) | (R) Probability density is maximum at nucleus |
(IV) orbital | (iv) -plane is a nodal plane | (S) Energy needed to excite electron from state to state is times the energy needed to excite electron from state to state |
For ion, the only INCORRECT combination is

HARD
11th CBSE
IMPORTANT
Column 1 | Column 2 | Column 3 |
(I) orbital | (i) | ![]() |
(II) orbital | (ii) One radial node | (Q) Probability density at nucleus |
(III) orbital | (iii) | (R) Probability density is maximum at nucleus |
(IV) orbital | (iv) -plane is a nodal plane | (S) Energy needed to excite electron from state to state is times the energy needed to excite electron from state to state |
For the given orbital in column, the only CORRECT combination for any hydrogen-like species is
