Question | Answer |
A way for scientists to organize information about all of the elements that we know about according to their properties. | The Periodic Table |
This is the name that scientists call the element. | Element Name |
The number of protons AND the number of electrons contained in one atom of the element. | Atomic Number |
The number of protons and neutrons in the nucleus of one atom of an element. | Atomic Mass |
An abbreviation for a chemical element. These always have one capital letter and are based on the element’s Latin name. | Chemical Symbol |
A ROW in the periodic table (moves from left to right) | Period |
A column in the periodic table (moves up and down). | Group/family |
The study of matter and how it changes | Chemistry |
Located in the nucleus of the atom. They have a neutral charge | Neutrons |
Anything that is made of atoms. It has mass and volume (takes up space) | MATTER |
Located in the electron cloud of the atom. They have a negative charge | Electrons |
The smallest unit of an element that has all the properties of the element. It’s the basic building block of matter | Atom |
Any substance that has a definite composition. | Chemicals |
A substance that cannot be broken down into a simpler substance by ordinary chemical means | Element |
Chemicals that are found in nature. | NATURAL |
Located in the nucleus of the atom. They have a positive charge | Protons |
Chemicals that are made by people | SYNTHETIC |
Two or more elements that have chemically combined | Compounds |
A metal bonded to a nonmetal | Ionic compounds |
A combination of two or more substances that HAVE NOT been chemically combined. | Mixture |
Bonds that form when two metals SHARE electrons | Metallic bonds |
Bonds that form when two nonmetals SHARE electrons | Covalent bonds |
A mixture that looks the same throughout. | Homogenous |
A mixture where you can see the different pieces. | Heterogenous |
A substance made by dissolving one substance in another | SOLUTION |
The stuff that is dissolved | SOLUTE |
The substance that does the dissolving | SOLVENT |
A substance’s ability to dissolve in a solvent | Solubility |
The amount of matter something contains | Mass |
The amount of space it occupies | Volume |
Measurable physical property that is found by dividing the mass of an object by its volume | Density |
Cannot change its shape or its volume. The particles fit together and don’t move around | Solid |
Can change its shape but not its volume. The particles are close together and stay touching when they move | Liquid |
Can change its shape and its volume. The particles are moving really quickly and bounce off each other | Gas |
Matter characterized by very energetic electrically charged particles | Plasma |
The temperature at which a solid changes to a liquid | Melting Point |
The temperature at which a liquid changes into a solid | Freezing Point |
The temperature at which a liquid changes into a gas | Boiling Point |
The amount of energy it takes to change the temperature of a substance by 1 degree Celsius | Specific Heat |
Metals are able to be hammered into thin sheets and made into shapes | Malleability |
Metal materials are able to stretched into wire without breaking | Ductility |
A force of attraction or repulsion of materials | Magnetism |
The ability of an object to transfer heat or electricity to another object | Conductivity |
A material that doesn’t conduct heat or electricity | Insulator |