MCQ PRACTICE -1

Which of the following is always a whole number?

Rutherford's alpha particle scattering experiment established that:

The α−particle scattering experiment of Rutherford concluded that

Which of the following are isotopes?

Which is correct statement about proton?

An atom as a whole is electrically neutral because the number of protons is equal to the number of electrons. Is the given statement true?

The mass of an atom is concentrated inside the ............. of an atom.

Which of the following atom has no neutron in its nucleus ?

In Rutherford's experiment, a thin gold foil was bombarded with alpha particles. If 'Thomson's Plum-Pudding' model of the atom was applicable, then what should have happened?

The number that represents, how many times one atom of an element is heavier than mass of one atom of carbon
\(_{6}^{12}\textrm{C}\)

Which of the following observations from Rutherfords experiment disprove Thomsons proposal that the atom is a positively charged sphere? table { border-collapse: collapse; width: 100%; } th, td { border: 1px solid #dddddd; text-align: left; padding: 8px; } th { background-color: #f2f2f2; }

Positively charged radiation was discovered by?

Which of the following has zero valency?

If Rutherford would have used β-particles instead of 

Which of the following concept was considered in Rutherford's atomic model?

The fundamental particles present in the nucleus of an atom are:

If the atomic number of an atom is 17 and the mass number is 35 then the number of neutrons will be

Statement I :
\(^{12}\textrm{C}\)

In a particular set-up, the Rutherford alpha ray scattering experiment using thin gold foil, N(θ) is found to be x. If a platinum foil of double thickness is used instead, N(θ) would be:

$$_{18} Ar^{40} , \ _{20} Ca^{40}$$ and $$ {_{19}}K^{40}$$