Class 7 Science MCQs - Chapter 2

Atoms and Atom Model Multiple Choice Questions (MCQ Quiz) PDF Download - 1

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The Multiple Choice Question (MCQ Quiz): To find out number of neutrons in an atom, we need to know the PDF, "Atoms and Atom Model MCQ" App Download (Free) with proton number, atomic number, electron number, and mass number choices for online study. Solve mass number and isotopes quiz questions, download Google eBook (Free Sample) for distance learning classes.

Class 7 Science: Atoms and Atom Model MCQs Questions PDF Download

MCQ: To find out number of neutrons in an atom, we need to know the

A) atomic number

B) proton number

C) electron number

D) mass number

MCQ: The attraction of two ions due to opposite charge is known as

A) ionic bonding

B) covalent bonding

C) metallic bonding

D) dative bonding

MCQ: To trace the path of phosphorus, the isotope of phosphorus which is added to the fertilizers, is

A) Phosphorus-31

B) Phosphorus-32

C) Phosphorus-33

D) Phosphorus-34

MCQ: If the mass of protons and neutrons is 1, then the mass of electron is

A) 2

B) 2-Jan

C) 4-Jan

D) 1/1890

MCQ: The name of physicist who discovered the nucleus of atom was

A) Democritus

B) John Dalton

C) Ernest Rutherford

D) Vander Waals

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