PYQ NEET- Structure Of Atom L-1

Question: Select the correct Statements from the following :#

A. Atoms of all elements are composed of three fundamental particles.

B. The mass of the electron is $9.10939 \times 10^{-31} \mathrm{~kg}$.

C. All the isotopes of a given element show the same chemical properties.

D. Protons and neutrons are collectively known as nucleons.

E. Dalton’s atomic theory regarded the atom as an ultimate particle of matter.

Choose the correct answer from the options given below.

A) C, D and E only

B) A and E only

C) B, C and E only

D) A, B and C only

Answer: B, C and E only#