1.

Use the letters only written in the Periodic Table given below to answer the questions that follow :(i) State the number of valence electrons in atom J. (ii) Which element shown forms ions with a single negative charge? (iii) Which metallic element is more reactive then R? (iv) Which element has its electrons arranged in four shells?

Answer»

(i) Five valence electrons

(ii) M

(iii) T

(iv) T



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