The basic unit of a chemical element.

A group of atoms bonded together.

An explanation of why matter, which is made up of particles, behaves the way it does.

Matter with a definite composition.

A pure substance with a single kind of atom.

A substance made up of two or more elements.

Substances that are physically combined but can be separated.

Heterogeneous Mixture

A mixture where the composition is not uniform.

A uniform combination of two pure substances.

Another term for a homogeneous mixture.

A procedure consisting of systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.

Used to predict, describe, and summarize scientific observations.

Used to explain why something happens the way it does.

Used to represent or conceptualize a system of ideas, events, or processes.

Validity (in science)

How accurate the results are; ensures the results represent what they are supposed to measure.

Dalton's Atomic Theory

A theory that contributed to modern science's understanding of atoms.

Law of Conservation of Mass

In a chemical reaction, the total mass of the reactants is always equal to the total mass of the products.

Law of Definite Composition

Chemical compounds contain two or more pure substances and these compounds always have the same proportion of elements by mass.

Law of Multiple Proportions

When one element combines with another to form more than one compound, the ratio of the masses of the elements in the compounds are simple whole numbers of each other.

Shows all the elements ordered by increasing atomic number and arranged based on their properties.

The number of protons an atom has.

The mass of an atom of a chemical element expressed in atomic mass units.

Elements typically found on the left and center of the periodic table that are dense, lustrous, malleable, have high melting points, and are great conductors of heat and electricity.

Elements that are dull, brittle, and conduct heat and electricity poorly.

Elements that have properties of both metals and nonmetals.

Groups (columns) on the periodic table that have similar physical and chemical properties.

Located in group 1 in the periodic table; extremely reactive and easily combine with other elements or compounds.

Alkaline Earth Metals

Located in group 2 in the periodic table; very reactive, but not as reactive as alkali metals.

Located in group 17 of the periodic table; contains six non-metallic elements.

Located in group 18; their outer shell contains the maximum number of electrons, making them stable.

A property that can be observed without forming a new substance.

A property of a substance that is determined when the substance is changed and a new substance is produced.

The ability of a substance to be dissolved.

The substance that is dissolved in a solution.

The substance that does the dissolving in a solution.

A solution that contains as much of the solute as it can possibly dissolve at a given temperature.

A solution that contains less solute than it can dissolve at a given temperature.

A ratio that compares mass to volume for a given substance.

A change in physical properties that is generally reversible.

A chemical substance is transformed into one or more different substances.

Discarded electronics, often outdated but still in usable condition.

Substances used in agricultural and residential areas to promote the growth of plants and crops.

The basic unit of a chemical element, consisting of protons, neutrons, and electrons.

Flashcards on Matter and Its Properties Flashcards

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54 questions

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1.

FLASHCARD QUESTION

Front

Matter

Back

Anything that has mass and takes up space.

2.

FLASHCARD QUESTION

Front

Chemistry

Back

The study of matter and changes in matter.

3.

FLASHCARD QUESTION

Front

Mass

Back

A measure of the amount of matter in an object.

4.

FLASHCARD QUESTION

Front

Volume

Back

The amount of space something occupies.

5.

FLASHCARD QUESTION

Front

Solid

Back

A state of matter that holds its shape unless a force is applied to it.

6.

FLASHCARD QUESTION

Front

Liquid

Back

A state of matter that has no defined shape and takes the shape of its container.

7.

FLASHCARD QUESTION

Front

Gas

Back

A state of matter that expands to fit the volume of its container.

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