Of the following elements, which could be classified as a metalloid (semimetal)? select all that apply.
(a) mg
(b) ti
(c) ge
(d) si
(e) rn
(f) au
(g) bi
(h) at
(i) br
(j) b
(k) eu

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold

What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?