2. Which of the following elements is in the same period as phosphorus?
O oxygen
O magnesium
O nitrogen
O carbon

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?

How many moles are in 43.9 l of oxygen

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it