PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1. The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
2. Identify the Mg^{2+} ion from the Figure where, n and p represent the number of neutrons and protons, respectively.
3.
In a sample of ethyl ethanoate (CH_3COOC_2H_5), the two oxygen atoms have the same number of electrons but different number of neutrons. Which of the following is the correct reason for it?
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