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