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 element 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:**

Option 1 - B, C and E only

Option 2 - A, B and C only

Option 3 - C, D and E only

Option 4 - A and E only

3 Views|Posted 5 months ago

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Answered by

Vishal Baghel | Contributor-Level 10

5 months ago

Correct Option - 1

Detailed Solution:

An Atom has three fundamental particles-electron, proton and neutron. The mass of the electron is 9.10939 * 10? ³¹ kg. Neutrons and protons, both are collectively known as nucleons. All the isotopes of a given element show same chemical properties. Dalton's atomic theory, regarded atom as an ultimat