Mass

Mass is the amount of substance that can be measured in grams or kilograms

Articles that Mass Appeared in...

Groups and Periods in the Periodic Table

Groups and Periods are the columns and rows of the periodic table. In this section you will explore how the periodic table was put together and the two main arrangement of the periodic table focusing on the groups and periods and metals and non metals.

Atomic Number of the Elements

The atomic number of the elements provides information on the number of protons in the nucleus.