Isotopes and Their Properties

The video tutorial guides students through a lab on stable and unstable isotopes. It begins with an introduction to isotopes, followed by instructions on listing protons and neutrons for both stable and unstable isotopes. Students are then shown how to graph these isotopes, identify patterns, and correct any errors. The tutorial concludes with a summary and encourages students to answer related questions.

What is the main objective of the lab on isotopes?

• To determine the color of isotopes

• To measure the weight of isotopes

• To list and graph stable and unstable isotopes

• To find the temperature at which isotopes melt

How many protons and neutrons does stable hydrogen have?

• 1 proton, 2 neutrons

• 2 protons, 2 neutrons

• 1 proton, 1 neutron

• 3 protons, 3 neutrons

What is the correct representation for stable helium in the lab?

• 2 protons, 2 neutrons

• 1 proton, 1 neutron

• 3 protons, 3 neutrons

• 2 protons, 3 neutrons

Which of the following is true about unstable hydrogen?

• It has 1 proton and 1 neutron

• It has 3 protons and 1 neutron

• It has 2 protons and 2 neutrons

• It has 1 proton and 3 neutrons

What color is used to represent stable isotopes on the graph?

• Green

• Red

• Yellow

• Blue

What shape is used to represent unstable isotopes on the graph?

• Square

• Circle

• Triangle

• Hexagon

What is the pattern observed in the graph for stable isotopes?

• They align on a straight line

• They form a zigzag pattern

• They form a circle

• They are scattered randomly

What is the significance of connecting the blue dots on the graph?

• It shows the pattern of stable isotopes

• It indicates the atomic weight

• It highlights the unstable isotopes

• It marks the isotopes with the highest neutrons

What should be done after completing the graph?

• Add more isotopes to the list

• Change the colors of the graph

• Recalculate the number of protons

• Answer the questions related to the lab

What is the key difference between stable and unstable isotopes on the graph?

• Neither align on the line

• Both align on the line

• Unstable isotopes align on the line, stable do not

• Stable isotopes align on the line, unstable do not