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