An atom of beryllium can be represented as 9/4Be. Describe the structure of the beryllium atom.
in your answer make reference to the number of subatomic
particles and where they are found in the atom

When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle. if the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3.2 kilopascals, what is the partial pressure of the hydrogen?