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ChemistryNEET 2023Electronic configuration, Aufbau, Pauli, Hund

Structure of Atom

Select the correct statements from the following:

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

B. The mass of the electron is 9.10939×10−319.10939 \times 10^{-31} kg.

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

D. Protons and electrons are collectively known as nucleons.

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

Choose the correct answer from the options given below:

  1. A.A, B and C only
  2. B.C, D and E only
  3. C.A and E only
  4. D.B, C and E only✓

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

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