Class 7 Science MCQs - Chapter 1
Atoms and Atom Model Quiz Questions & Answers PDF Download - 11
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The Atoms and atom model Quiz Questions and Answers PDF (atoms and atom model Quiz PDF e-Book) download Ch. 1-11 to learn Grade 7 Science Course. Solve Mass Number and Isotopes MCQs PDF, Atoms and Atom Model Quiz Questions and Answers to study online schools courses. The Atoms and Atom Model Quiz App Download: Free learning app for mass number and isotopes, methane, chemical formulas, electron levels test prep for school certificate.
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Atoms and Atom Model Exam Questions and Answers PDF Download: Test 11
Isotopes behave the same way in
- chemical reaction
- bonding
- electrical conductivity
- physical reaction
In methane gas, each carbon atom is bonded with
- two oxygen atoms
- two hydrogen atoms
- three oxygen atoms
- four hydrogen atoms
Oxygen is a diatomic gas so its chemical formula is
- O2
- O2
- O
- Ox
The atomic number of helium is
- 1
- 2
- 3
- 4
The atomic number of hydrogen is
- 1
- 2
- 3
- 4
Class 7 Science Mock Tests
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