Anything that does not take up space, an abstract concept.

Examples (at least 4): Time, Sound, Sunlight (UV rays), Gravity, Microwaves, Sound waves, Radio waves

MATTER CANNOT BE CREATED OR DESTROYED. It can change phases or it can react with other matter and rearrange its molecules.

Smallest unit of matter/part of an element. All atoms of a particular element are the same.

Protons have a ____________ charge.

Protons are found ____________ the nucleus.

Neutrons have a ____________ charge.

Neutrons are found ____________ the nucleus.

Electrons have a ____________ charge.

Electrons are found ____________ the nucleus.

The number of protons in an atom. It is the same as the number of electrons.

The atomic number is always equal to the number of protons and ________________.

The mass of the nucleus only! The unit for atomic mass is 1 AMU.

The atomic mass is found by adding the number of ______________ and the number of ___________________.

The columns in the periodic table.

All members of groups/families behave the same way; they have the same chemical properties.

The rows across the periodic table,

In a period, the atomic number increases from left to right.

Shiny, good conductors of heat, usually solid at room temperature, able to be molded into shapes.

Example: Lithium, Sodium, Magnesium, Calcium

Metals are found on the ___________ side of the periodic table.

The most reactive metals in the table.

React best with Group 17 of the nonmetals.

Example: Hydrogen, lithium, sodium, potassium, rubidium, cesium, francium.

The second most reactive metals in the table.

React best with Group 16 of the nonmetals.

Example: Beryllium, magnesium, calcium, strontium, barium, radium.

Do not conduct heat well, usually gas or liquid at room temperature.

Example: Nitrogen, oxygen, fluorine, hydrogen, phosphorous

Nonmetals are found on the ______________ side of the periodic table.

Elements separating metals and nonmetals. Contain properties of both metals and nonmetals.

Example: Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Polonium, Astatine.

Elements in Group 17 of the periodic table,

React best with Group 1 Alkali metals.

Example: Fluorine, Chlorine, Bromine, Iodine

Elements found in Group 18 of the periodic table. These gases are considered “stable” and don’t react well with anything. They have the magic number 8!

Example: Helium, Neon, Argon, Krypton, Xenon, Radon

Properties of an element or compound that can be observed without a chemical reaction of the substance.

Examples (at least 4): Appearance, Texture, Color, Odor, Melting point, Boiling point, Density, Solubility.

Properties of an element or compound in chemical reactions.

Examples (at least 4): Heat of Combustion, Reactivity with Water, pH, Corrosivity, Flammability, Toxicity

A substance changes appearance/state, but has not chemically changed. You can get back what you started with.

Examples (at least 4): Breaking glass, melting ice cubes, ripping paper, cutting hair, boiling water, melting wax.

A substance is chemically changed or combined to form a new substance. You can never get back what you started with

Examples (at least 4): Burning wood, digesting food, cooking an egg, rusting nail, cleaning a penny,

Releases heat. Temperature rises when reaction occurs because the reaction is releasing heat to its surroundings to form the product so it is adding heat to its surroundings, causing the temperature to rise.

Examples at least 4): Freezing liquid, condensation of gas, gas deposition, calcium carbonate and sulphuric acid, calcium oxide and water,potassium permanganate and glycerol.

Absorbs heat. Temperature drops when reaction occurs because the reaction is absorbing heat from its surroundings to form the product so it is taking heat away from its surroundings, causing the temperature to drop.

Examples at least 4): Melting an Ice Cube, Barium Hydroxide and Ammonium Chloride, Evaporating Liquid Water, Vinegar and Baking Soda, Dry Ice Sublimation, Potassium Chloride and Water.

Made up of only one type of atom.

Made up of two or more elements chemically combined.

Example: Sugar (C6H12O6), Salt (NaCl), Water (H2O)

A mixture where the different molecules are spread in the same ratio throughout. You can’t distinguish between the substances.

Example: Salt (solute) and water (universal solvent)

Matter that is different throughout, the parts of the mixture are distinguishable.

Example: Chex mix, chocolate chip cookie, sandwich, salad, pizza

Substance that is doing the dissolving.

Example: Water or milk

Substance that is being dissolved.

Example: Salt, Kool-aid, chocolate powder.

How much stuff something can dissolve in a liquid.

We know that the equation below is balanced because it has​​ an _____________ number of atoms for each element on both sides of the chemical equation.

N2 + 3H2 —-----> 2NH3

The graph below shows that as the temperature increases, the amount of solute that can be dissolved in 100 grams of water ________________.