Isotopes

For this periodic table worksheet, students review atomic mass, molar mass, and percent composition of compounds. Then students complete 4 problems.

Facilitate learning by using small objects to teach the principles of atomic mass in your science class. Pupils determine the average mass of varying beans as they perform a series of competitive experiments. They gather data and...

I would weigh less on the moon? Send me there, then! On the top of the first page, a cartoon image demonstrates the difference between Earth and the moon. It then goes on to describe weight and mass and provides five practice problems...

Altering the subatomic nature of an atom affects its properties. The video illustrates the idea of an isotope using Carbon-12, Carbon-13, and Carbon-14 as examples. 

Relative molecular masses sure have a lot of decimal places! Watch the video to learn how the number of particles in one mole of carbon-12 determines relative atomic and molecular masses. Viewers also learn how to calculate the...

Scientists created a new measurement, the atomic mass unit, which is defined as carbon 12 = 12amu. So why isn't carbon listed as having exactly 12 amu on the periodic table? An installment from the Socratica chemistry playlist answers...

The amount of information you can learn about an element from the periodic table is amazing! Young scientists learn how to interpret the atomic number and atomic mass. Using a carbon atom as an example, the instructor describes the...

Create models of the infrared, visible, and ultraviolet portions of the electromagnetic spectrum. Working in small groups, your class can investigate metric conversions calculations. They will find the length of the waves in nanometers,...

Many people confuse atomic mass and atomic numbers. The sixth of seven lessons in a unit requires scholars to find the weight of different groups of pennies. Then, they must solve how many of each type of penny exists in a closed system...

Introduce your young meteorologists to black carbon produced by the burning of fossil fuels by showing the video, "Changing Planet: Black Carbon." Viewers discover that deposition of this carbon on polar ice impacts the absorption of...