Transcript Matter Test Review - Burnet Middle School


Anything that has mass and takes up space
 Energy
 Sound
 Heat
 Light
 Electricity

Basic particle from which all elements are
made

Building blocks of matter

Smallest unit of matter
Subatomic
particle
Charge
Location
Proton
Positive
In the nucleus (center
of the atom)
Neutron
No Charge (Neutral)
In the nucleus (center
of the atom)
Electron
Negative
Moving around the
outside of the atom

A pure substance that can not be broken
down into other substances by chemical or
physical means

Made up of only one TYPE of atom

Listed on the periodic table

The number of PROTONS!!!

Ex/ ONLY Carbon atoms have 6 protons

It is the same as the atomic number

Silver has 47 protons

It is equal to the number of protons –
because atoms are NEUTRAL.


Aluminum has an atomic number of 13, so it
has 13 protons.
If it has 13 protons, it will have 13 electrons.

Two or more substances that are mixed
together but NOT chemically combined

Substances are evenly distributed
◦ Ex/ Salt water, Iced Tea, steel, Kool-aid
◦ They form solutions

Substances are not evenly mixed, you can
pick out the individual parts
◦ Ex/ soup, pizza, salad,

A pure substance made of two or more
elements that are chemically combined.

Has a FORMULA!!

Ex/ CO2
 1.
What elements(atoms)
make up the compound
 2. How many of each
element (atom) is found in a
molecule of the compound
 Na
= Sodium – 1
 C = Carbon – 1
 O = Oxygen – 3
C
=6
 H = 12
O = 6
Atomic number
(# of protons)
Atomic mass
Name
Symbol