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Lakhmir Singh & Manjit Kaur - Chemistry

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Q. 555.0( 1 Vote )

Three different a

Class 9th Lakhmir Singh & Manjit Kaur - Chemistry 4. Structure of Atom

Answer :

(i) The subscripts (lower figures) represents the atomic number and the superscripts (upper figures) represents the mass number.

(ii) The factor is responsible for the change in the superscripts 16, 17 and 18, though the element is the same number of neutrons.

(iii) The usual name for such atoms of an element is isotopes.

(iv) The nuclear composition of is that it have 8 protons and 10 neutrons

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