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