CBSE /Class 9
Science MCQ Based On Structure of the atom introduction
Our free online Science test quiz for Class 9, CBSE will assist you to improve your Science skills on every concept in a fun interactive way.
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CBSE Class 9 Science Structure of the atom introduction
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Deuterium is an isotope of hydrogen and has 1 proton and 1 neutron.
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What is the number of electrons that reside in the last shell of Sodium?
How are the atomic number and number of neutrons related?
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What is the number of electrons that reside in the last shell of Lithium?
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