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was a scientific theory in the nature of matter

staled that all matter was made up of small indivisible particles or atoms

-All matter is made up of tiny, indivisible par ticles called atoms

-- All atoms of a specific element are identical in mass, size and other particles

-Atoms can neither be created nor destroyed..

Atoms of different elements can combine
with each other in fixed whole
number ratios
in order to form compounds.

-Atoms can be rearranged, combined, or separat. ( ed in chemical reachons

MERITS OF PALTON'S ATOMIC THEORY -

-matter can neither be created nor destroyed

.

Proportion of elements by weight in a given compound will remain

a.

- two elements combine to form more than one compound

9.

- when gases are produced in a chemical... reaction

-under the same conditions of temperature

made up of particles proton, neutron, electron

-smallest unit of matter

-nucleus (center) of atom contains the proton (positively charged) and neutron (no charged

number of proton present in an atom

-located in the nucleus with the protons

ATOMIC MASS

ATOMIC NUMBER

NEUTRON

Located in an electron cloud

-electrically neutral group of atoms

consists of two atoms

charge carrying atom or maglecule ANION (-) CATION (+)

-process that produces on ion

-way of presenting information about chemical proportions of atomsomol

provide insights into the elements that constitute the molecules of compound

provide insights into the number of elements present in compound elements are denoted by their respected symbols

-represent the ratio of lements
-usually obtained based on the analysis
- can be derived from molecular formula

provides insights into the arrangement of atoms

are formed in the same way as binary compounds