how much power can be produced by a dam 150m tall that has an efficiency of .90 and a flow rate of 15,000

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

if you mean hydrogen and oxygen then water is the product

16

explanation:

the marks go by 4s