Exploring Matter Unit 1

An experimented- part philosopher , part, scientist , part magician ; some alchemists believed that metal could be turned into gold

A metal made by combining two or more different metals or metals and nonmetals

A particle in an element; from the Greek word atoms meaning invisible

The average mass of an atom element

The number of protons in an atom

The average distance from the nucleus to the "outer edge" of a spherical atom

A diagram , summarizing the numbers and position of all three subatomic particles in an atom , that comprises electrons in a series of concentric circles (energy levels or orbits) drawn around a central nucleus, containing the numbers of protons and neutrons in the element

The temperature at which a liquid begins to boil

A concept used in models that represent the forces that hold atoms together

The alternation of a substance into one or more different substances with different properties

The combination of symbols that represents a particular compound

The characteristic behavior that occurs when one substance interacts with another to become one substance

An abbreviation for the name of an element

The ability of an element to combine with other elements

The chemical property of a substance that allows it to burn when exposed to flame and oxygen

The chemical reaction that occurs when a substance reacts rapidly with oxygen and releases energy

A material formed by combining two other materials

A pure substance that contains two or more different element in a fixed proportion

A slow chemical change that occurs when a metal reacts with oxygen to form oxygen

The mass per unit volume of a substance, usually expressed in kilograms per cubic meter or grams per cubic centimeter

A molecule that forms when two atoms of the same element join together

The physical property of a solid that allows it to be pulled into wires

A negatively charged particle with a relative mass of a botu1 /2000 of the mass of a proton or a neutron

A pure substance that cannot be broken down into simpler substances

A group of elements in the periodic table arranged in columns, that share similar properties and characteristics

The chemical property of a substance that allows it to burn when exposed to flame and oxygen

The physical property of a solid that is the measure of its resistance to being scratched or dented

An element that is shiny, malleable, and conducts electricity, is generally solid at room temperature, and has very high density

A substance in which the different components are identifiable and can be separated by physical means

A mixture in which two or more substance mix together so completely that the mixture looks and feels like it is made of only one substance

The chemical property of a substance that allows it to become a new substance when it interacts with light

The physical property that allows the shape of a solid to be changed

The sum of the protons and neutrons in the nucleus of the atom.

Anything that takes up space and has a mass

Elements that posses both metallic and nonmetallic properties

The technology of separating metals from their ores

A naturally occurring compound containing metal

A substance that contains 2 different substances

A law stating that elements arranged in order of increasing atomic number reflect a pattern in which similar properties occur regularly

A combination of 2 or more atoms

One of the individual molecules that make up polymers

A neutral particle located in the nucleus, or core, of the atom

A rock containing a mineral

A horizontal row of elements in the periodic table that do not share similar properties

Anything that repeats according to the same pattern

An organized arrangement of elements that explains and predicts and predicts physical and chemical properties

A change in the state or form of a substance that does not change the original substance

A characteristic or description of a substance that can be used to identify it

A material made of long molecules composed of repeating subunits

The process of chemically bonding monomers to form polymers

A positively charged particle located in the nucleus, with a relative mass of 1.

A substance that contains 1 kind of particle

An example of corrosion involving iron's reaction with oxygen from air, water, and other chemical substance dissolved in water

The ability of a substance to dissolve in a solvent

An internationally recognized system used to identify chemical substances.

A drawing to explain molecules in which atoms and structural bonds are included

The small number written after an element, below the line, in a chemical formula to indicate how many atoms of the element are present

A material that is invented and produced by people.

The physical property of a liquid that limits its ability to flow