Atomic Structure
Periodic Table
Physical/
Chemical Properties
Law of
Conservation of
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.
100
What is the simplest unit of matter?
An atom
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 and periods are horizontal rows.
200
What are three signs of a chemical change?
Color change, Formation of a gas, Temperature change, and Formation of a precipitate
200
Why do atoms bond?
To become stable and have a full octet or 8 valence electrons.
300
Draw the Lewis Structure of B
A capital B surrounded by three electrons.
300
What is the most reactive group of nonmetals?
The Halogens
300
What are three physical properties of a metal?
Conductivity, Malleability, Magnetism, and Luster
300
Covalent bonds are formed between what kind of elements?
Nonmetals
400
What subatomic particle do we use to identify an atom?
Protons
400
Why are the Noble Gases considered stable?
Each element in the Noble gases has a full outer electron shell or have at least 8 valence electrons.
400
Do physical changes produce compounds or mixtures?
Mixture
400
What kind of bond is formed when Na and Cl bond together to create table salt?
Ionic Bond
M
e
n
u