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Science

QuestionAnswer
What is a compound A compound is a mix made up of two or more different elements that are chemically combined.
What is a mixture A mix of two or more substances that are not chemically combined.They are "physically " mixed together AND you can easily separate them.
What is a atom The smallest unit of an element that keeps the properties of that element
Which two particles are found in the nucleus of an atom Protons and neutrons
Which subatomic particles have a positive charge Proton
Which subatomic particle has a negative charge Electron
What subatomic particle has no charge Neutrons
Where are electrons found in a atom Outside the nucleus in energy levels (shells)
Describe a element Consists of only one type of atom
How are elements arranged on the periodic table By atomic number
What is the vertical column on the periodic table called Group
What is the horizontal row on the periodic table called Period
Which division of the periodic table generally contains elements that are good conductors of heat and electricity Metals
Solid A substance with a defined shape and volume
Liquid A substance that has a definite volume but not a definite shape
Gas A substance that has neither a definite shape nor volume
Freezing A change in state that occurs when the temperature of particles decreased energy and a liquid turns into a solid
Melting A change in state that occurss when particles speed up and change from a solid to a liquid
Boiling A rapid change in state that occurs throughout a substance changing it from a liquid to a gas
Evaporation A change in state that occurs as a particle from the surface of a liquid , liquid to gas
Sublimation A change in state directly from a solid to the gas
Condensation The reverse of evaporation when a substance changes from a gas to a liquid state
Deposition The change in state directly from a gas to a solid state
Boiling point The specific temperature at which a liquid changes to a gas
Melting point The specific temperature at which a solid changes to a liquid
Solutes
Created by: Shasinad
 

 



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