Refer to the periodic table and select the symbol of the element that fits each of the

Question:

Refer to the periodic table and select the symbol of the element that fits each of the following descriptions.

(a) The semimetal in the second period 

(b) The semimetal in the fourth period and Group IVA/14 

(c) The halogen that exists as yellow gas 

(d) The halogen that is radioactive.

Periodic Table:

2 3 4 10 6 3 7 11 Li 6.94 1 IA Na 22.99 19 37 5 Rb K 39.10 al 55 4 87 2 IIA Fr (223) Be 9.01 12 Mg 24.31 Sr

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