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