Class 7 Science Online Tests
Mass Number and Isotopes MCQ (Multiple Choice Questions) PDF Download
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Mass Number and Isotopes MCQ (PDF) Questions Answers Download
To find out number of neutrons in an atom, we need to know the
- atomic number
- proton number
- electron number
- mass number
Neutrons in an atom also affect the
- chemical properties
- physical properties
- bonding properties
- thermal properties
As neutrons have electrical charge, they do not effect
- bonding properties
- physical properties
- chemical properties
- thermal properties
The radioactive isotope of carbon is
- carbon-12
- carbon-13
- carbon-14
- carbon-6
Isotopes behave the same way in
- chemical reaction
- bonding
- electrical conductivity
- physical reaction
Class 7 Science Practice Tests
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