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Question
A nucleus `"_11Na^24` emits a beta particle to change into Magnesium (Mg).
(i) Write the symbolic equation for the process.
(ii) What are numbers 24 and 11 called?
(iii) What is the general name `"_12^24Mg` with respect to `"_11^24Na`?
Solution
(i) \[\ce{_11Na^24 -> _1Mg^2 + _-1e^0 + energy}\]
(ii) 24 - mass no. (no. of protons and neutrons)
11 - atomic number (no. of protons)
(iii) `"_11Na^24` is called parent nuclei.
`"_12Mg^24` is called daughter product.
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