Atomic Structure
Periodic Table
Physical/
Chemical Properties
Chemical Properties
Law of
Conservation of
Matter
Conservation of
Matter
Why does it matter?
100
Where are the electrons found in an atom?
In electron shells/clouds/rings on the outside of the nucleus.
100
How are elements arrange in the periodic table?
The elements are arrange in order of atomic number or number of protons.
100
What is the difference between a chemical and a physical change?
A physical change can be reversed and a chemical change cannot be reversed easily. New substance is made.
100
What is the simplest unit of matter?
An atom
100
What happens to the molecules of water when they change from a liquid state to a solid state?
The molecules of water slow down when it goes through a phase change from a liquid to a solid.
200
What are the three subatomic particle (small particles) that make up an atom?
Protons and Neutrons make up the nucleus of the atom and the electrons are found outside the nucleus.
200
What is the difference between a group and a period?
Groups form vertical columns determine # valence electrons and periods are horizontal rows, determine shells of an atom.
200
What are three signs of a chemical change?
Color change, Formation of a gas(Bubbles), Odor, Temperature change, Light production and Formation of a precipitate
200
Why do atoms react with each other?
To become stable and have a full octet or 8 valence electrons.
200
A bowl of chocolate M&M's is an example of what type of mixture?
Heterogeneous Mixture
300
Draw the Bohr Model of B
A capital B surrounded by three electrons.
300
What is the most reactive group of nonmetals?
The Halogens or Group 17
300
Which Metal Group is the most Reactive
Group 1
300
How many total atoms are in C6H7O2(OH)3?
21
300
What is an isotope?
Provide one example of an isotope with your definition.
An isotope is an atom with a different number of neutrons then what appears on the periodic table.
Two examples of isotopes are Carbon14(used to determine the age of fossils) and Uranium238(used to determine the age of rocks)
400
What subatomic particle do we use to identify an atom?
Protons
400
Why are the Noble Gases considered stable?
8 valence electrons. Full Valence Ring
400
What are three physical properties of a metal?
Conductivity, Malleability, Magnetism, and Luster
400
A bicycle rusting is what kind of Reaction?
Chemical
400
What term best describes the change in temperature during a chemical reaction that causes the products to become cold?
Endothermic Reaction
500
Draw the Bohr's Model for F.
Check with teacher
500
List the following elements in order of their reactivity. Start with the most reactive and move to the least reactive.
Ca , C, Br, K, He
K, Ca, Br, C, He
500
In the Periodic Table of elements, the element in Group 2 can be expected to have-(similar or different)- Physical and Chemical Properties
Similar Physical and Chemical Properties
500
How many Positive, Neutral Particles does 1 atom of K. have?
+19, 20
500
What happens when a strong base and a strong acid are mixed in equal proportions?
Both the strong base and the strong acid are neutralized.
The product of the reaction will have a more neutral pH than the reactants.