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