Elements quiz

The chemical symbol for Oxygen is

• Ox
• Og
• O
• On

The two most common elements found in the oceans are.  Remember oceans are made up of water.

• Sodium and Nitrogen
• Oxygen and Aluminum
• Iron and Carbon
• Oxygen and Hydrogen

which one can be found on the periodic table

• Compound 
• Element

What does the C represent?

• atomic mass
• atomic number
• element name
• chemical symbol 

Water compound

• NaCl
• H2O
• Protein
• CaCO

How many elements are represented in the compound?
Na₂CO₃

• 1
• 2
• 3
• 4

The blue numbers in the image below are called ___________.

• compounds
• coefficients
• subscripts
• chemical formulas

How many protons does an Aluminum atom have? (use the picture to help you)

• 27
• 13
• 14
• 40

An electron has a _____ charge.

• negative
• positive
• neutral

Describe an Electron Cloud?

• the mist outside of an atom
• home of the protons
• where electrons are located
• nucleus