ATOMIC STRUCTURE & CHEMICAL BONDING

No two electrons in an atom will have all the four quantum numbers are same. Is the statement of?

• Hund’s rule

• Aufbau principle

• Pauli’s exclusion

• Principle uncertainty principle

Azimuthal quantum number determines the...

• Size

• Spin

• Orientation

• Angular momentum of orbital

The outer shell configuration of nitrogen is

• 2s²

• 3p¹

• 2p³

• 2p²

The quantum number for the designation of 3d are

• n=2,m=3

• n=3,l=3

• n=2,l=1

• n=3,l=2

The Heisenberg Principle states that ____________

• No two electrons in the same atom can have the same set of four quantum numbers.

• No two electrons in the same atom can have the same set of four quantum numbers.

• It is impossible to determine accurately both the position and momentum of an electron simultaneously

• Electrons of atoms in their ground states enter energetically equivalent sets of orbitals singly before they pair up in any orbital of the set.

Which atomic orbital is spherical in shape?

• 2s

• 3p

• 3d

• 4f

The maximum number of electrons that can be accommodated in a sublevel for which l = 3 is:

• 2

• 10

• 6

• 14

Which of the following has a positive charge?

• Proton

• Neutron

• Anion

• Electron

De-Broglie equation states the:

• Dual nature

• Particle nature

• Wave nature

• None of these

An orbital is a region of space where there is a high probability of finding

• Proton

• Neutron

• Positron

• Electron