Topic
States of matter
4 questions tagged States of matter — spanning every one of the seven Ws.
what
What is a plasma?
Plasma is a state of matter made of ionized gas with free electrons and charged ions. It is the most common visible form of matter in the universe.
PhysicsStates of matter
how
How many elements are gases at room temperature?
There are 11 elements that are gases at room temperature, if you count the noble gases plus hydrogen, nitrogen, oxygen, fluorine, and chlorine. Exact counts can vary slightly with the temperature used.
ChemistryStates of Matter
how
How many elements are liquids at room temperature?
Only 2 elements are liquid at room temperature: mercury and bromine. Gallium and cesium melt near room temperature but are usually solid unless warmed slightly.
ChemistryStates of Matter
how
How many elements are solids at room temperature?
Most elements are solids at room temperature: 105 of the 118 confirmed elements are typically solid. Only a small number are gases or liquids under normal conditions.
ChemistryStates of Matter