Question

the elements A,B,C and D have atomic numbers of 3,9,12 and 18 respectively. Classify them as metals and non metals​

Answer 1

(A) - WITH ATOMIC NUMBER 3 IS LITHIUM WHICH IS A METAL

(B) - WITH ATOMIC NUMBER 9 IS FLUORINE WHICH IS A NON METAL

(C) - WITH ATOMIC NUMBER 12 IS MAGNESIUM WHICH IS A METAL

(D) - WITH ATOMIC NUMBER 18 IS ARGON WHICH IS A NON REACTIVE NON METAL

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