Question

Explain with Isobars Give any two uses of isotopes.

Answer 1

$\textbf{Answer is in Attachment !}$

Answer 2

i) Isotopes are elements with the same atomic number but different mass numbers. Example, hydrogen has 3 isotopes - protium (1H1), deuterium (2H1) and tritium (3H1).

ii) Isobars are elemnts which have different atomic numbers but the same mass number. They are different chemical elements. Example, iron and nickel, both have mass number 58, whereas atomic numbers are different.  

⇒ Uses of isotopes -

a) Some isotopes are used in the process of labelling for various studies. Like, isotopes of hydrogen, carbon, nitrogen etc. are used for labelling process.

b) Used for nuclear imaging of various tissues for detection of diseases. fluorine-18, gallium-67 etc. are used for this purpose.