In metals, reactivity increases across a period, and in non-metals reactivity increases
across a period?

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

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

Summarize possible ways in which phases of matter could combine to form a solution.