Question

ans my sci doubts plz​

Answer 1

compounds contain atoms of two or more element in fixed proportion.

7 ans - The fundamental particles of atom is electron , proton , nuetron.

8 ans - nucleus is the smallest particles of an atom.

9 ans - nucleus consist a proton and muetron.

10 ans - proton is positive charge and the mass of proton is 1.602×10ka power -19 coulomb .

11 ans - nuetron is nuetral particle and nuetron have no any charge .

13 ans - (a) proton - 1.673 × 10 ka power -27 kg .

(b) nuetron 1.675 × 10 ka power -27

(c) electron 1.602 × 10ka power -19 kg

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