Structure of Atom

Who proposed the 'Plum Pudding Model' of the atom?

Which particle has the least mass among proton, neutron, and electron?

The atomic number of an element is equal to the number of:

In Rutherford’s gold foil experiment, most alpha particles passed through the foil because:

The quantum number that determines the shape of an atomic orbital is:

What is the maximum number of electrons that can be accommodated in the third shell (n=3)?

Which of the following statements is correct for isotopes?

The Heisenberg Uncertainty Principle states that:

Calculate the wavelength of an electron moving with a velocity of 3 × 10⁶ m/s. (Mass of electron = 9.11 × 10⁻³¹ kg, Planck’s constant h = 6.626 × 10⁻³⁴ Js)

Which quantum number is responsible for the orientation of an orbital in space?