Matter
Gas Laws
The Periodic Table
Atomic Structure
Chemical Reactions
100

This state of matter has a definite shape and a definite volume. 

What is a solid?

100

This law states that as the pressure of a gas increases, its volume decreases, provided the temperature remains constant.

What is Boyle’s Law?

100

These horizontal rows on the periodic table indicate the number of electron shells an atom has.

What are periods?

100

This subatomic particle carries a negative charge and orbits the nucleus.

What is an electron?

100

In this type of reaction, two or more substances combine to form a single new compound.

What is a synthesis reaction?

200

This type of mixture is uniform throughout, such as salt dissolved in water.

What is a homogeneous solution?

200

This temperature scale must always be used when performing gas law calculations.

What is the Kelvin scale?

200

Elements in Group 18, such as Neon and Argon, are known by this name due to their lack of chemical reactivity.

What are Noble Gases?

200

Atoms of the same element that have the same number of protons but different numbers of neutrons.

What are isotopes?

200

These are the substances found on the left side of a chemical equation.

What are reactants?

300

This process occurs when a substance changes directly from a solid to a gas without becoming a liquid.

What is sublimation?

300

According to this law, the total pressure of a mixture of gases is equal to the sum of the partial pressures of the individual gases.

What is Dalton’s Law of Partial Pressures?

300

This term describes the energy required to remove an electron from a gaseous atom.

What is ionization energy?

300

This number represents the sum of protons and neutrons in an atom's nucleus.

What is the mass number?

300

This type of reaction releases energy into the surroundings, often in the form of heat.

What is an exothermic reaction?

400

This intensive property is defined as the ratio of an object's mass to its volume.

What is density?

400

This is the volume occupied by one mole of any ideal gas at Standard Temperature and Pressure (STP).

What is 22.4 liters?

400

This element has the highest electronegativity on the periodic table.

What is Fluorine?

400

This principle states that it is impossible to know both the exact velocity and the exact position of a particle at the same time.

What is the Heisenberg Uncertainty Principle?

400

This is the term for a solid that forms and settles out of a liquid mixture during a chemical reaction.

What is a precipitate?

500

These are properties, like boiling point or mass, that can be observed without changing the substance's chemical identity.

What are physical properties?

500

Written as PV = nRT, this equation describes the behavior of a hypothetical gas that perfectly follows all kinetic molecular theory assumptions.

What is the Ideal Gas Law?

500

These elements, found along the "staircase," have properties of both metals and nonmetals.

What are metalloids?

500

This rule states that electrons will fill empty orbitals of the same energy level before pairing up.

What is Hund’s Rule?

500

In a redox reaction, this term describes the process where an atom or ion gains electrons.

What is reduction?

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