List of top Physics Questions on Atoms asked in NEET (UG)

J.J. Thomson's cathode-ray tube experiment demonstrated that

The volume occupied by an atom is greater than the volume of the nucleus by a factor of about

A sample of radioactive element has a mass of $10\, g$ at an instant $t = 0.$ The approximate mass of this element in the sample after two mean lives is

If the energy of a hydrogen atom in nth orbit is $E_n$, then energy in the nth orbit of a singly ionized helium atom will be

Energy is released in nuclear fission is due to

When an electron does transition from $n = 4$ to $n = 2$, then emitted line spectrum will be

For the given reaction, the particle \(\text {X}\) is:
\(_6C^{11}→\ _5B^{11}+β^++X\)

Complete the equation for the following fission process $_{92}U^{235}+_0n^1 \, \rightarrow _{38}Sr^{90} +.......$

When hydrogen atom is in its first excited level, its radius, is

Due to earth's magnetic field, the charged cosmic rays particles

Energy released in the fission of a single $^{235}_{92}U$ nucleus is 200 MeV. The fission rate of $^{235}_{92}U$ filled reactor operating at a power level of 5 W is

Which source is associated with a line emission spectrum?

In terms of Bohr radius a0, the radius of the second Bohr orbit of a hydrogen atom is given by

In the nucleus of $_{11}Na^{23}$ , the number of protons, neutrons and electrons are

Curie is a unit of

The atomic number of silicon is 14. Its ground state electron configuration is