A) proton B) transfer C) transiton D) directional E) electron
A) lead B) mercury C) boron D) tin E) gold
A) the hydrogen group B) halogens C) alkali metals D) the boron family E) actinides
A) noble gases B) common earths C) iron triad D) rare earths E) halogens
A) cobalt B) lead C) tin D) zinc E) platinum
A) halogens B) actinides C) noble gases D) lanthanides E) the boron family
A) group 1 B) group 2 C) group 16 D) group 15 E) group 14
A) H B) h C) Hg D) He E) Hf
A) helium B) sugars C) salts D) chlorine E) iodine
A) They are liquid metals. B) They have magnetic properties. C) They are worth more money. D) They glow in the dark. E) They never rust.
A) groups B) families C) triads D) periods E) metaloids |