Based on its location on the periodic table which element would be most likely to form a negative ion?
a. magnesium(mg)
b. strontium(sr)
c. bromine(br)
d. potassium(k)

Protons and neutrons are found within the nucleus of an atom

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

What was the purpose of the apollo program? to put a man in orbit to launch a spy satellite to launch a space station to put man on the moon