ShowPer Page

Brackett series of H-atom is in which of the following regions of electromagnetic spectrum?

NETNUST Entry TestChemistryAtomic Structure

When alpha particles are bombarded on beryllium, __________ is formed.

NETNUST Entry TestChemistryAtomic Structure

d subshell has

NETNUST Entry TestChemistryAtomic Structure

Which quantum number decides energy of orbitals?

NETNUST Entry TestChemistryAtomic Structure

Which of the following quantum numbers are for p-subshell?

NETNUST Entry TestChemistryAtomic Structure

In a discharge tube, at room pressure there is

NETNUST Entry TestChemistryAtomic Structure

Which orbitals always possess same energy

NETNUST Entry TestChemistryAtomic Structure

Spectrum of which series is in the UV region?

NETNUST Entry TestChemistryAtomic Structure

Spectrum of which series is in the visible region?

NETNUST Entry TestChemistryAtomic Structure

The velocity of electron in the outermost shell is?

NETNUST Entry TestChemistryAtomic Structure

Potential Energy of an electron in the orbit of an atom is

NETNUST Entry TestChemistryAtomic Structure

Breaking of a neutron produces?

NETNUST Entry TestChemistryAtomic Structure

If an electron of hydrogen atom jump from 5th orbit to 7th orbit, its atomic radius increases by

NETNUST Entry TestChemistryAtomic Structure

If an electron makes a transition from 4th orbit to inner orbits, then the wavelength for which the radius is maximum, lies in which of the following series?

NETNUST Entry TestChemistryAtomic Structure

Diameter of Hydrogen atom is?

NETNUST Entry TestChemistryAtomic Structure

The correct order of orbitals is

NETNUST Entry TestChemistryAtomic Structure

According to the Aufbau principle the electrons are added first to the orbital:

NETNUST Entry TestChemistryAtomic Structure

Hund's rule states that when electrons enter to the same sub-levels they are:

NETNUST Entry TestChemistryAtomic Structure

Pauli exclusion principle states that no two electrons in a given orbital have:

NETNUST Entry TestChemistryAtomic Structure

An atom has an electronic configuration $1s^{2},/:2s^{2},/:2p^{3}$.The number of unpaired electrons in this atom is:

NETNUST Entry TestChemistryAtomic Structure

Which one of the following has the same number of electrons as an alpha particle?

NETNUST Entry TestChemistryAtomic Structure

The electron configuration of $H^{-}$ is:

NETNUST Entry TestChemistryAtomic Structure

Maximum number of electrons that can be accommodated in a shell is given by:

NETNUST Entry TestChemistryAtomic Structure

An orbital like $s_{1},/:p_{x},/:p_{y},/:p_{z}$ and $d_{xy}$ can have at the most:

NETNUST Entry TestChemistryAtomic Structure

WHat is the value of n + l ( principle and Azimuthal quantum numbers) for 3rd orbital?

NETNUST Entry TestChemistryAtomic Structure