The scientific study of what matter is made of and how it reacts when it comes into contact with other matter.
100
What is the symbol for Gold on the Periodic Table?
Au
100
A solution is a type of ________.
mixture
200
How are chemistry and physics related?
Both branches of physical science
200
Which of the three states of matter have definite volume?
Solids and liquids
200
Define neutron and where it is found.
A part of an atom that has no electrical charge and is found in the inside of the atom's nucleus
200
Within the two main groups of elements are smaller groups called ________.
families
200
Order the following from least dense to most dense. cotton ball, comb, air, rock
Order: air, cotton ball, comb, rock
300
Why are elements considered the simplest substances on earth?
Because they cannot be broken down further
300
How are mass and density related?
Density is determined by how much mass is in a given space.
300
What is a compound?
A substance that is formed when the atoms of two or more elements join together chemically.
300
Which element has no neutrons?
Hydrogen
300
Molecules slide by other molecules in a ______.
liquid
400
List the four main parts of an atom
Nucleus, electrons, protons, and neutrons
400
In most chemical bonds, what do atoms share?
Electrons
400
What is a mixture?
A substance made of two or more elements or compounds that are mixed together but not chemically joined
400
Every atom has the same number of ________ as it has __________.
protons, electrons
400
What has a positive charge? Negative? No charge?
Protons, electrons, neutons
500
What are the two main groups of elements? Into what smaller groups are they broken down?
Metals and nonmetals; families
500
Gas is also considered _______. However, it does not have a definite _______ or _________.
matter, shape, volume.
500
Define gas, liquid, and solid.
Gas: matter than has not definite shape or volume
Liquid: matter that has a definite volume but no definite shape
Solid: Matter that has a definite shape and volume.
500
Which branch of physical science matches the following job description? "Doing research in nuclear energy."
physics
500
Like solids, ________ have a definite ________. However, they do not have a definite _______.