Contribution to the Atomic theory Time...he named the smallest piece of matter “ATOMOS ,” mea...n’s Atomic theory: • Fir...Q.1 Why atoms of isoto...ining the structure of a...STIONS ON CHEMISTRY PRAC...solution :...the basis of: i. appear...tions and classify them...

...808) that atom is the smalles...particle of matter. Atomic radii are of the order of 10-8cm.... Some of the charact...1.6 * 10-19) C). The mass of proton is...’s U94667="70099 994801">ncertainty Pri...branch of chemistry whic...ich gives the amplitude...o;I’:? is always p...ron in an atom is identi...Electrons of (/1 + 1) sh...

Chemistry It is the branch of science...eals with the composition, structure...roperties of matter. Antoi...is called the father of chemistry....tc., are other branches of chemistr...It is the simplest form o...one kind of atoms. The n...element. The present...umber (2.69x 1019). &...s mixture of several iso...