The electronic configuration of atoms of three elements is x = (2,8,1), y= (2,8,6) and z = (2,8,7):
(i) What will be the formula of compound formed between X and Z.
(ii) Classify the above elements as metals and non–metals.
(iii) Which element is a good conductor of electricity and why?
(iv) Write the formula of X and its atomic number
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Answer:
The electronic configurations of three elements X, Y, and Z are X - 2,8; Y - 2, 8, 7 and Z - 2, 8, 2. Which of the following is correct? Explanation: According to the electronic configuration given above, Y is chlorine (non-metal) and Z is Magnesium (metal).
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