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CHEMISTRY

Chemistry
The fundamental particles present in the nucleus of an atom are

Neutron, electron
Neutron, positron
Electron, proton
Proton, neutron

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Chemistry
J.J. Thomson’s proposed model of atom is generally called ________ model.

Cream and pudding
Cream and cake
Plum and pudding
Plum and cake

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Chemistry
What particles move around the nucleus of an atom and are negatively charged?

Protons
Electrons
Neutrons
Positrons

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Chemistry
Atoms having the same number of protons but different number of neutrons are called :

Cations
Higgs-boson
Anions
Isotopes

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Chemistry
Chemical properties of isotopes

Need not be same
Need not be different
Must be same
Must be different

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