Atomic Structure
Periodic Table
Physical/
Chemical Properties
Law of
Conservation of
Matter
10
Where are the electrons found in an atom?
In electron shells/clouds/rings on the outside of the nucleus.
10
How are elements arrange in the periodic table?
The elements are arrange in order of atomic number or number of protons.
10
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.
10
What is the simplest unit of matter?
An atom
20
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.
20
What is the difference between a group and a period?
Groups form vertical columns and periods are horizontal rows.
20
What are three signs of a chemical change?
Color change, Formation of a gas, Temperature change, and Formation of a precipitate
20
Why do atoms bond?
To become stable and have a full octet or 8 valence electrons.
30
Draw the Lewis Structure of B
A capital B surrounded by three electrons.
30
What is the most reactive group of nonmetals?
The Halogens
30

True or False: If a substance has moved from a liquid to a gas, then a chemical change has occured

False

30
Covalent bonds are formed between what kind of elements?
Nonmetals
40
What subatomic particle do we use to identify an atom?
Protons
40
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.
40

True or False: The periodic table is not organized in a way to show physical properties

False

40
What kind of bond is formed when Na and Cl bond together to create table salt?
Ionic Bond
50

Draw the Bohr's Model for Fluorine.

Check with teacher

50

How many valence electrons does Carbon have?

4

50

What are physical properties of a metal?

Conductivity, Malleability, Magnetism, and Luster

50

What will always be true about the reactants and the products of a chemical reaction that takes place in a closed space?

The number of atoms in the reactants and the number of atoms in the products are the equal. The mass of the reactants and the mass of the products are equal.

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