Matter and Atoms
What is matter?
Matter is all the "stuff" that exists in the universe that has mass and volume
What is a physical change?
A change in physical properties that do not change the makeup of the substance(s)
What are the three states of matter?
Solid, Liquid, Gas
What do the boxes on the periodic table represent?
Elements
What is a chemical change?
a change that turns into a different substance
What are atoms?
Atoms are the building blocks of matter.
Is a physical change reversible?
yes.
This state of matter has a fixed shape and volume with tightly compact particles
A solid
8
O
oxygen
15.99
What is oxygens atomic number and atomic mass?
Atomic number is 8
Atomic Mass is 15.99
Is a chemical change reversible?
No. (with some exceptions)
What do mass and volume measure?
Mass measures the amount of matter
Volume measures the amount of space
Name the 6 processes of a physical change
cutting, bending, dissolving, boiling, freezing, and melting
This state of matter has no fixed shape but a fixed volume and particles that slide past each other
a liquid
What are the columns and rows on the periodic table called?
Columns are called groups
Rows are called periods
Name the 3 examples of a chemical property
flammability, reactivity, and ability to rust
What are the three subatomic particles that make up atoms?
Protons, Neutrons, Electrons
Name the five senses
sight, smell, hearing, touch, and taste
This state of matter has no fixed shape or volume and particles spread apart moving rapidly
a gas
What placement of the element tells how many shells or energy levels it has?
what number row it is in equals the number of shells or energy levels
Name the 5 process of chemical changes
release of bubbles, change of color, production of odor, release of heat and light, and production of loud sounds
Where are each subatomic particle located in an atom?
Electrons are on the shell (or outside) in constant motion
Name additional physical properties
boiling point, ability to conduct heat, ability to conduct electricity, ability to dissolve
Freezing, Melting, Evaporation, Condensation, Sublimation, and Deposition
How do you solve to find the number of neutrons in an atom?
subtract the atomic number from the rounded atomic mass
Which of the following is NOT a chemical change?
A. Melting chocolate
B. Burning Wood
C. Baking a cake
A. Melting chocolate is a physical change