Question

give the salient features of modern atomic theory??​

Answer 1

Answer:

) An atom is no longer indivisible. (ii) Atoms of the same element may have different atomic mass. ... (vi) Atom is the smallest particle that takes part in a chemical reaction. (vii) The mass of an atom can be converted into energy (E = mc²).

Answer 2

Answer:

Hey mate here is your answer,

(i) An atom is no longer indivisible.

(ii) Atoms of the same element may have different atomic mass.

Eg: isotopes 17Cl35, 17Cl37.

(iii) Atoms of different elements may have the same atomic masses.

Eg: Isobars 18Ar40, 20Ca40.

(iv) Atoms of one element can be transmuted into atoms of other elements. An atom is no longer indestructible.

(v) Atoms may not always combine in a simple whole-number ratio.

Eg: Glucose C6H12O6 C : H : O = 6 : 12 : 6 or 1 : 2 : 1.

(vi) Atom is the smallest particle that takes part in a chemical reaction.

(vii) The mass of an atom can be converted into energy (E = mc²).

Explanation:

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