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