Chemistry Test Practice

The following element key shows how many protons?

• 16
• 15.999
• Oxygen
• 8

Protons are equal to:

• Atomic Mass
• Number of neutrons
• Atomic Number
• All of the subatomic particles

How many electrons does an atom with 8 protons have?

• 8
• 16
• 15.99
• 24

USE THE PERIODIC TABLE

How many valence electrons does Phosphorus have?

• 31

• 5

• 15

• 4

What is the formula to solve for the neutron?

• Mass + Atomic Number= Neutrons
• Mass x Atomic Number = Neutrons
• Mass - Atomic Number = Neutrons
• Mass + Number of Protons = Neutron

Draw a Bohr Diagram for Carbon

Draw a Bohr Diagram for Lithium

The elements to the LEFT side of the periodic table (colored blue in the picture) are classified as ______________.

• Metals

• Nonmetals

• Metalloids

The elements to the RIGHT side of the periodic table (colored yellow in the picture) are classified as ______________.

• Metals

• Nonmetals

• Metalloids

Which Bohr model represents Be? (Use a Periodic Table)

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