Question

what is atom...............

Answer 1

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✴Atom, smallest unit into which matter can be divided and retain the characteristic of an element.


in short-

ATOM : The smallest particle of an element which may or may not have independent existence is called atom.



✴Atoms are extremely small; typical sizes are around 100 picometers.


✴There are three fundamental particular particles of atom i.e

✔ ELECTRON (-ve)

✔ PROTON (+ ve)

✔ NEUTRON ( no charge)


✴ ELECTRON was discovered by J.J Thomson


✴ PROTON was discovered by Goldstein


✴ NEUTRON was discovered by Chadwick.




THANKS ✌☺


#HarYanvi ThinkeR ♠ Nishu ❤

Answer 2

Heya !

Here's your answer !!

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ATOM

□ An atom is the smallest particle of the element that cannot usually exist independently and retain all its chemical properties.

□ Atoms are very very small in size. Hydrogen atom is thr smallest atom of all.

□ Atoms of most of the elements are very reactive.

□ They exist in combination with the atoms of the same element or another element.

□ Atoms cannot be divided.

□ Atoms can neither be created nor be destroyed.

□ Atoms are made up of three subatomic particles : electrons, protons and neutrons.

□ Atoms of different elements differ in mass, size and chemical properties.

□ All the atoms of a given element are identical in every respect, having the same mass, size and chemical properties.

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Thanks !!