Elements in the periodic table are sorted into groups and periods. This organization is based on their structure and how they behave.
Groups: These are the columns that go up and down, numbered from 1 to 18. Elements in the same group act in similar ways because they have the same number of valence electrons. For example, Group 1 has the alkali metals. These metals are very reactive.
Periods: These are the rows that go side to side, numbered from 1 to 7. As you move from one side to the other, you will see elements change from metals to non-metals. Each period shows how many electron shells are around the nucleus.
This setup helps us guess how elements will behave and react!
Elements in the periodic table are sorted into groups and periods. This organization is based on their structure and how they behave.
Groups: These are the columns that go up and down, numbered from 1 to 18. Elements in the same group act in similar ways because they have the same number of valence electrons. For example, Group 1 has the alkali metals. These metals are very reactive.
Periods: These are the rows that go side to side, numbered from 1 to 7. As you move from one side to the other, you will see elements change from metals to non-metals. Each period shows how many electron shells are around the nucleus.
This setup helps us guess how elements will behave and react!