1.

WRITE THE ELEMENT NAME OF THE FOLLOWING SYMBOLS: Li, Na, K, Mg, Ca, Ra, H, N, O, C, Br, F,Cl, I, He, Ne, Ar, Kr, Xe, Rn, P, S, Se, At

Answer»

ANSWER:

MG - mangenes

o- oxygen

Ar- argon

Kr - krpton

rest TRY by irself



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