Science II: Chapter 1 Review

The image shows a box found in the period table. What does the "1" indicate?

• Hydrogen's Atomic Number

• Hydrogen's

  Chemical symbol

• The name of the Element

• Hydrogen's atomic mass

The image shows a box found in the periodic table. What is this element's chemical symbol?

The image shows a box found in the periodic table. What is Hydrogen's mass?

• 1

• 1.008

  or

  1 (rounded)

• both of these answers are correct

The image shows a box found in the periodic table.

What is Carbon's atomic number?

The image shows a box found in the periodic table. What is Carbon's chemical symbol?

The image shows a box found in the periodic table. What is Carbon's mass?

• 6

• 12 (rounded)

• 12.011

Whose Atomic model is being shown in the photo?

If we were to use Dalton's Atomic Model to represent CO2, which element would be represented by the red ball? which element would be represented by the grey balls?

• Red = C

• Red = O

• Grey = O

• Grey = C

What is the difference between an Atom and a Molecule?

• An atom is made up of a single element

• An atom is made up of 2 or more atoms

• A molecule is made up of 2 or more atoms

• A molecule is made up of a single elements

Is CO2 an atom or molecule?

• Atom

• Molecule