Guys answer me the perfect definition of atoms,matter,isotpes and isobars

Question

Guys answer me the perfect definition of atoms,matter,isotpes and
isobars

Akanksha Jain · Accepted Answer

Kindly refer to the following link:

https://www meritnation
com/ask-answer/question/define-atom/inside-the-atom/6333455

https://www meritnation
com/ask-answer/question/what-is-matter-definition-what-are-the-properties-of-matt/matter-in-our-surroundings/848608

https://www meritnation
com/ask-answer/question/define-isotopes-and-isobars-what-are-the-characteristics-of/structure-of-the-atom/1840407