Answer at least 1 question from each category. To demonstrate mastery of content, a total of 10 points is required. You may be asked to complete additional tasks (or questions) if less than 10 points are earned.
Required
3 points
3
Question 1
1.
Category 1
Drag the correct subatomic particle name to correctly label the key.
Other Answer Choices:
Electron
Proton
Neutron
Required
2 points
2
Question 2
2.
Category 1
Explain to a friend how you would calculate the number of neutrons in oxygen based on the information in the picture.
Your answer should include:
* the number of neutrons, and
* an explanation of how you calculate the number of neutrons.
Required
1 point
1
Question 3
3.
Category 1
Which of these shows the correct number of protons?
Required
2 points
2
Question 4
4.
Category 1
Which statements correctly describe isotopes? You may select as many answers as you think are true.
Required
6 points
6
Question 5
5.
Use the drawing tool to draw the molecules in the following chemical equation.
Equation: 2H₂O₂ → 2H₂O + O₂
Be sure to:
* Include the correct number of each molecule and atom.
* The correct location of each molecule on each side of the equation.
Required
2 points
2
Question 6
6.
Category 2
Select all of the properties of lithium that are physical properties.
Required
1 point
1
Question 7
7.
Which statement best describes the difference between a physical change and a chemical change?
