The electronic configuration of an element is 1s2 2s2 2p6 3s2 3p1 . An atom of this element form an ion that will have charge (A) +1 (B) +2 (C) +3 (D) -1

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.

Which element is least likely to undergo a chemical reaction