perfect definationof atom,matter,isotopes,isobars
Please guys answer it
Its urgent
Atom: An atom is the smallest part of an element that may or may not have an independent existence and takes part in a chemical reaction.
Matter: Matter is anything that occupies space and has mass.
Isotopes: Isotopes are the atoms of the same element with same atomic number but different mass number. They have similar chemical properties but different physical properties.
Isobars: Isobars are each of two or more isotopes of different elements, with the same atomic weight.
Matter: Matter is anything that occupies space and has mass.
Isotopes: Isotopes are the atoms of the same element with same atomic number but different mass number. They have similar chemical properties but different physical properties.
Isobars: Isobars are each of two or more isotopes of different elements, with the same atomic weight.