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 9.10939×10–31 kg. C. All the isotopes of a given e

Question

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 9.10939×10–31 kg. C. All the isotopes of a given elements show same chemical properties. D. Protons and electrons 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

Prashant Kotian · Accepted Answer

Correct answer: C. It is statement based question. Statements B, C & E are correct. (B) Mass of the electron is 9.10939 10–31 kg (C) All the isotopes of given elements show same chemical properties. (E) Dalton's atomic theory, regarded the atom as an ultimate particle of matter.

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