They are mostly solid.
A plasma.
The most common type of energy/mass in the Universe is in the form of dark energy, followed by dark matter. Only about 4% of the Universe is in the form of "normal" (baryonic) matter. If it is specifically to this matter you refer: the most common state of matter is plasma, found in stars.
compunds
Dark energy is believed to make up about 73% of the mass of the Universe; dar matter about 23%; and normal matter - the kind we know most about - about 4%. In the case of normal matter, most of it is still in the form of hydrogen.
compound
Matter is important because it makes up everything around you; matter can not be created or destroyed it just transformed into a different form.
float around in the air.
Water is the most dense in its liquid form.
Compounds
Around 99.5%
you can learn that vampiers do exist they can be human form or an animal form. no matter wat vampires are lurking around.
gamma radiationA2 perhaps neutrons.