Structure of Atom

Which of the following was a major drawback of Rutherford's nuclear model?

The mass of a neutron is approximately:

How many protons and neutrons are there in $^{235}_{92}U$?

The bounce-back of $\alpha$-particles in Rutherford's experiment can be compared to which of the following scenarios?

What keeps the atom as a whole electrically neutral in the Rutherford model?

In Thomson's model, the large sphere that makes up the bulk of the atom is considered to be ______.

The Lyman series of the Hydrogen spectrum lies in the:

In Bohr's formula for the radius of an orbit, if $Z$ increases for a fixed $n$, the radius:

The Bohr model could not explain the dual nature of matter, which was proposed by:

In the quantum mechanical model, what is the region around the nucleus where the probability of finding an electron is high?

Which rule states that degenerate orbitals are filled singly before pairing begins?

When $l=2$, what are the possible values for $m_l$?

In the photoelectric effect, if the frequency of light is less than the threshold frequency, then:

Wavenumber is defined as the:

The value of $1$ electron-volt ($eV$) in Joules is:

What is the primary reason the uncertainty principle is ignored in classical mechanics?

The uncertainty in position of an electron is $10^{-10}$ m. If the uncertainty in momentum is very high, the electron behaves more like a:

If $\Delta x$ is measured in meters and $\Delta p$ in $kg \cdot m/s$, what is the unit of the constant $h$?

Which subshell notation corresponds to $n = 3$ and $l = 2$?

What is the total number of orbitals in the first shell ($n = 1$)?

The orbital angular momentum of an electron is calculated using which quantum number?

Which of the following sets of quantum numbers is NOT allowed?

The ground state electronic configuration of Copper ($Z=29$) is:

If the principal quantum number $n=2$, the possible values of the azimuthal quantum number $l$ are: