Class 7 Science MCQs - Chapter 2

Atoms and Atom Model MCQ Questions PDF Download - 6

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The Book Atoms and atom model MCQ with Answers PDF, atoms and atom model quiz questions, test 6 to study online class 7 science certification course. Study Science and Radioisotopes Multiple Choice Questions and Answers (MCQs) PDF, atoms and atom model quiz questions and answers for online learning. The eBook Atoms and Atom Model MCQs App Download: science and radioisotopes, mass number and isotopes, atoms and discovery, electrons and shells, valencies and valency table test prep for distance learning.

The MCQs: The isotope of uranium (Uranium-238) contains PDF, "Atoms and Atom Model" App Android & iOS (Free) with 142 neutrons, 141 neutrons, 146 neutrons, and 149 neutrons choices for online learning. Practice science and radioisotopes quiz questions, download Apple Book (Free Sample) for online study.

Class 7 Science: Atoms and Atom Model Quiz Answers PDF Download

MCQ: The isotope of uranium (Uranium-238) contains

A) 141 neutrons

B) 142 neutrons

C) 146 neutrons

D) 149 neutrons

MCQ: As neutrons have electrical charge, they do not effect

A) bonding properties

B) physical properties

C) chemical properties

D) thermal properties

MCQ: The theory about atom was first put forward by a Greek philosopher

A) Williams

B) Democritus

C) Isaac Newton

D) Galileo

MCQ: Electrons revolve around the nucleus as fast as

A) sound in air

B) sound in liquid

C) sound in solid

D) sound in light

MCQ: If hydrogen forms only one bond, then the valency of hydrogen is

A) 1

B) -1

C) 7

D) 2

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