CBSE Class 9 Chemistry Parameters of an Atom

Q.

What is the valency of an atom with atomic number 8?



Q.

Which of the following is not an isotope of hydrogen?



Q.

Both   and   are found in nature in the ratio



Q.

Isotopes have the same number of ………… but different number of ………...



Isotopes and Isobars

This video explains isotopes and isobars with examples.