Question

what is atoms and molecules ?​

Answer 1

Atoms are defined as “the basic building blocks of matter”. It is the smallest constituent unit of matter that posses the properties of the chemical element. ... Molecules consist of one or moreatoms bound together by covalent (chemical) bonds.

Answer 2

$\large{\underline{\underline{\red{\sf{\dag Atom:- }}}}}$

$\bullet\tt{It\:is\:smallest\:oridinary\:matter .}$

$\bullet\tt{ It\:may\:or\:may\:not\:have\: independent\: existence.}$

$\bullet\tt{ Every\:state\:of\:matter\:is\:composed\:of\:neutral\:or\:ionized\:atoms.}$

$\bullet\tt{Every\:atom\:has\:a\:nucleus\:and\:energy\:levels\: around\:it .}$

$\bullet\tt{ Nuclues\:consists\:of\:neutrons\:and\:protons..}$

$\bullet\tt{ Electrons\:revolve\:around\:nuclues.}$

$\bullet\tt{ Electrons\:and\:protons\:are\:attracted\:by\: electrostatic\:force..}$

_________________________________________

$\large{\underline{\underline{\red{\sf{\dag Molecules:- }}}}}$

$\bullet\tt{It\:has\:a\:independent\: existence .}$

$\bullet\tt{Atoms\:combine\:chemically\:to\:form\:molecules .}$

$\bullet\tt{ Their\:have\: different\: properties\:than\: constituent\:atoms.}$

$\bullet\tt{ They\:are\: electrically\:neutral.}$

$\bullet\tt{ It\:may\:be\:homonuclear\:or\:hetronuclear.}$