Matter
Anything that has mass and takes up space.
What is Matter?
The positively charged particle found in the nucleus of an atom.
What is a Proton?
The horizontal rows on the periodic table.
What are Periods?
The type of bond formed when atoms share electrons.
What is a Covalent Bond?
In a glass of sugar water, the sugar is this part of the solution.
What is the Solute?
A type of matter with a fixed composition, such as an element or a compound.
What is a Substance?
The center of the atom that contains almost all of its mass.
What is the Nucleus?
Elements that are shiny, malleable, and good conductors of heat and electricity.
What are Metals?
The substances found on the left side of a chemical equation.
What are Reactants?
The primary reason oil and water do not mix.
What is: oil is nonpolar and water is polar?
This type of change occurs when ice melts or glass breaks, but the identity of the substance stays the same.
What is a Physical Change?
This subatomic particle is the "fingerprint" of the atom; it determines exactly which element it is.
What is the Proton?
The term for a metal's ability to be drawn into thin wires.
What is Ductile?
In this type of reaction, two or more substances combine to form one single new substance.
What is a Synthesis Reaction?
The process where an ionic solid separates into its positive and negative ions.
What is Dissociation?
A mixture where different materials remain distinct, like a salad or a bag of trail mix.
What is a Heterogeneous Mixture?
These electrons in the outermost energy level determine how an atom will react with others.
What are Valence Electrons?
These Group 18 elements are very stable and rarely react with other elements.
What are Noble Gases?
A molecule that has no separated positive and negative areas, like oil.
What is a Nonpolar molecule?
Adding salt to water has this effect on the boiling point.
What is: it increases it?
New substances are formed in this type of change.
What is a Chemical Change?
Atoms of the same element that have different numbers of neutrons.
What are Isotopes?
These highly reactive nonmetals are found in Group 17.
What are Halogens?
A substance that speeds up a chemical reaction without being used up itself.
What is a Catalyst?
A solution that contains a large amount of solute for the amount of solvent is described by this term.
What is Concentrated?