What would be the corresponding letter of the electron cloud type of the largest value allowed on energy level 3?

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?