Mix 2g of hydrogen and 16g of oxygen what is the compound made

Which element is the least metallic between cadmium, silver, zinc, or iron?

Displacement is the slope of a velocity vs. time graph a. true b. false

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope