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ICSE /Class 9
Chemistry MCQ Based On Isotopes and octet rule
Our free online Chemistry test quiz for Class 9, ICSE will assist you to improve your Chemistry skills on every concept in a fun interactive way.
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ICSE Class 9 Chemistry Isotopes and octet rule
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Think about Isotopes!!
Octet rule - Atom's valence shell has resemblance with noble gas.
The atomic number is equal to the number of protons and the atomic mass is the sum of protons and neutrons
Octet has 8 electrons
Isotopes of carbon-14 have 8 neutrons.
Valence electron of CARBON is 4.
Check using octet rule.
Having same number of protons but different number of neutrons.
Think about octet rule
Think about outer most orbit of the element!!
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