FINAL EXAM REVIEW CCP

Equal to 6.02x10²³ particles

A comparison between the amounts of chemicals in a reaction, in moles

A process that cools the environment

This code of numbers and letters describes electron locations

Niels Bohr's atomic model

A solution made from water dissolving another chemical

Chemistry is the study of matter and its changes. Matter has two qualities:

An ion is defined as

The type of orbital that has a double barbell shape and can hold a maximum of 10 electrons is

Most elements on the Periodic Table fit in this general category

Chemicals used as ingredients in a chemical reaction

A substance with only one type of atom is a(n)

These drawings represent atomic bonding and valence electrons

The mass of 1 mole of a chemical is called

This number is equal to the number of protons in the nucleus

An element's 'electronegativity' is a measure of

A chemical you find in the lab is

Chemical reactions that absorb more energy from the environment than they produce are called

This general category of elements includes most on the Periodic Table

A chemical "solution" is:

A chemical reaction category that produces a compound and an element, starting with a compound and an element

The rule in electron configuration that says only two electrons can fit in one orbital

The mass of an atom

This principle says that most elements are stable when they have 8 valence electrons

This principle says that electrons fill orbitals from low energy to high energy orbitals

These particles are involved in chemical reactions

This category of elements share properties of metals and nonmetals

Chemical periods are the ____________ on the Periodic Table of Elements

This principle says that elements with the same valence electrons will have similar chemical properties

Energy comes in two main forms:

This is the smallest unit of an element

Mendelev is considered the creator of the modern periodic table because he grouped similar elements, creating the

The Periodic Table of Elements is organized into 18 of these

This forms in an aqueous solution when a solid is created

Elements come in different varieties, depending on their number of neutrons, called____

The nucleus of an atom

This group of elements is unreactive and transparent

A chemical reaction category that produces only one chemical

Attraction forces that occur between molecules

Says that electrons fill low energy orbitals before high energy orbitals

forms when the forces of attraction and repulsion are equal between two atoms

The most unreactive category of nonmetals is

The most reactive category of nonmetals is

Says that electrons must spread out in a set of orbitals before pairing

This principle says that electrons spread out in a set of orbitals before pairing

This principle says that elements with the same number of valence electrons will have similar chemical properties

These are the positive particles in the atom

this topic in chemistry involves calculating amounts in a chemical reaction

This time of process will feel cool to you (and the environment)

These are the particles involved in chemical reactions

This subatomic particle has no electric charge

An example of a heterogeneous mixture is

a polyatomic ion is

There are 18 of these on the Periodic Table

A reaction that has an element and a compound as reactants and products is called a _____ reaction

This pure substance is made of two or more elements

This principle says that most elements are stable when they have 8 valence electrons

This number is the sum of the two kinds of particles in the nucleus

Equal to 6.02x10²³ particles