Q3 of 63 Page 113

How can an α-particle be represented?

Alpha particle is the isotope of Helium atom, it has a mass of 4u. It can be represented as.


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1

Why are anode rays called so?

 2

Mention the charge present on the nucleus of an atom.

 4

Does the nucleus contain neutrons also?

 5

An element X has 5 electrons in its M-shell. What is its atomic number?