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