PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1. Write down the names of the particles represented by the following symbols and explain the meaning of superscript and subscript numbers attached.
\(_{1}\textrm{H}^{1}\) -
\(_{0}\textrm{n}^{1}\) -
\(_{-1}\textrm{e}^{1}\) -
The top number is a superscript number that indicates its .
The bottom number is the subscript number that indicates its .
2. For an atom ‘X’, K, L and M shells are completely filled. How many electrons will be present in it?
The number of electrons occupy in the K, L and M shells are given below:
K \(=\) \(2\),
L \(=\) \(8\),
M \(=\) ,
Total electrons.
Number of electrons \(=\) \(=\) atomic number \(=\) .
The element with atomic number is .
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