1. a metal with 3 valence electrons, used in cans. 2. a period 3 element that will not react naturally.
3. has 5 valence electrons and in period 3.
4. the most reactive metal.

An example of technology is the a. addition of a side group to an organic molecule during synthesis. b. use of a new antibiotic to fight an infection. c. measurement of iron concentration in a water sample. d. study of atomic fusion reactions

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Which is true about metals used for jewelry, such as platinum and gold? a. they have low flammability. b. they have low reactivity. c. they have high flammability. d. they have high reactivity.