What is Matter?
This is anything that has mass and takes up space.
What is Matter?
This type of matter is made of only one kind of atom.
What is an element?
A mixture that is evenly mixed (uniform) and looks the same throughout is called this.
What is a homogeneous mixture?
This subatomic particle has a positive charge.
What is a proton?
This chart organizes all known elements.
What is the Periodic Table?
All matter is made of these tiny building blocks.
What are atoms?
This pure substance is made of two or more types of atoms chemically bonded together.
What is a compound?
A mixture in which you can see different parts is called this.
What is a heterogeneous mixture?
This subatomic particle has no charge.
What is a neutron?
This number tells how many protons an atom has.
What is the atomic number?
Scientists use these to show how atoms are arranged in substances.
What are particle models?
Oxygen (O) is an example of this type of matter.
What is an element?
Saltwater is an example of this type of mixture.
What is a homogeneous mixture?
This subatomic particle has a negative charge and is outside the nucleus.
What is an electron?
In a neutral atom, the number of these equals the number of protons.
What are electrons?
According to the study guide, matter is made of tiny building blocks called _____.
What are Atoms?
CO₂ is an example of this type of matter.
What is a compound?
Salad is an example of this type of mixture.
What is a heterogeneous mixture?
The nucleus contains these two subatomic particles.
What are protons and neutrons?
Atomic mass equals the number of these two particles added together.
What are protons and neutrons?
Name the two characteristics that define matter.
It has mass and takes up space.
Glucose has the formula C₆H₁₂O₆. Explain why it is a compound.
It contains more than one type of atom bonded together.
Name three physical methods for separating mixtures.
Filtration, evaporation, and sifting.
Why are atoms called neutral?
They have the same number of protons and electrons.
An atom has atomic mass 19 and atomic number 9. How many neutrons does it have?
10 neutrons.