Key Terms
Matter is anything that has ______ and _______.
Mass and Volume
Particles in a solid move by ________
Vibrating in place
False
_____ particles orbit the nucleus
Electron
An element is made up of how many types of atoms?
One
______ are the basic building blocks of matter
Atoms/Elements
Both ______ and ______ have a fixed volume.
Solid and liquid
New substances are created through ______ changes
Chemical
_____ particles are smaller than ______ particles
Electrons (are smaller than) protons
How many elements are in the periodic table?
118
______ properties can be observed with your senses.
______ properties can be measured.
Qualitative
Quantitative
_____ expands to fill any container
Gas
Fire is an example of _______
a chemical reaction
a.____ are positively charged
b.____ are negatively charged
c._____ have no charge
a. Protons
b. Electrons
c. Neutrons
What is the atomic symbol for carbon dioxide?
CO2
______ act as the glue of an atom
Neutrons
When heat energy is added to matter, particles _____
move faster / get farther apart
During evaporation, matter _____ heat energy
matter gains heat energy
The number of ______ determine what element an atom is.
Protons
Which element has the smallest atomic number (1)?
Hydrogen
Each _______ is made up of a fixed ratio of elements
compound
Most of the matter in the universe is _______
plasma
Solid becoming a gas is:_______
Gas becoming a solid is: _______
Sublimation
Deposition
_______ determine the chemical properties of atoms.
Electrons
Name two elements in the Noble Gas family.
Possible Answers:
Helium, Neon, Argon, Krypton, Xenon, Radon