What is Matter
What is matter?
Anything that has mass and takes up space?
What are atoms?
The smallest units of matter?
What is a pure substance?
matter made of only one type of particle
What does the atomic number tell you?
the number of protons in an atom?
Are metals good conductors of electricity?
Yes
What is chemistry the study of?
The study of matter and how it changes?
What do we call the center of an atom?
the nucleus
What is a mixture?
matter made of more than one type of particle
What is the name of the vertical columns in the periodic table?
groups or families
Are non-metals generally dull or shiny?
dull
What are the three states of matter?
Solid, Liquid, and Gas
What subatomic particles are found in the nucleus?
protons and neutrons
What is a homogeneous mixture?
a mixture that looks like one substance throughout
What are the horizontal rows called?
periods
What is a metalloid?
an element with properties of both metals and non-metals
True or False: Light is considered matter.
False.
What is the charge of a neutron
neutral/no charge
What is a heterogeneous mixture?
a mixture where you can see the different parts?
Which group is known as the noble gases?
Group 18?
Give one example of a metalloid.
silicon (Si), boron (B), arsenic (As), etc.
What law states that matter cannot be created or destroyed?
The Law of Conservation of Mass?
What are three of the 5 main points of the particle theory?
1. All matter is made of particles,
2. Particles have space,
3. Particles are always moving,
4. Particles attract,
5. Temperature affects movement
Is air a pure substance or a mixture?
a mixture
How is the periodic table organized? (Hint: Increasing ______ _______)
increasing atomic number
Name 2 differences between metals and non-metals.
metals are shiny and conductive, while non-metals are dull and poor conductors