Q2 of 63 Page 113

Mention the charge present on the nucleus of an atom.

The nucleus of any atom has positive charge on it because it is composed of proton which are positively charged and neutral neutrons.


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7

(i) Name the isotope used as a fuel in nuclear reactors.

(ii) What is the number of sub-atomic particles in this isotope?

 1

Why are anode rays called so?

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How can an α-particle be represented?

 4

Does the nucleus contain neutrons also?