how many groups (families) are there n the periodic table


how many elements are in your periodic table

what is the basic theme of organization in the periodic table

This would be a good time to look at your periodic table. If you don't have one, look in your text. If you forgot your text, here is on on-line.

http://www.webelements.com/

How many elements? Look on your chart.

The basic theme is that elements are arranged in order of their increasing atomic number from left to right and by similar chemical properties in columns.

To find the number of groups (families) in the periodic table and the total number of elements, you can follow these steps:

1. Counting the Number of Groups (Families):
- The periodic table is divided into vertical columns called groups or families.
- To determine the number of groups, simply count the number of columns from left to right.
- As of now, there are 18 groups in the periodic table.

2. Counting the Total Number of Elements:
- Each horizontal row in the periodic table is called a period.
- To count the total number of elements, add up the elements in each period.
- As of now, the periodic table contains 118 confirmed elements.

The basic theme of organization in the periodic table is based on the atomic structure of elements. Elements are organized in the periodic table in order of increasing atomic number (the number of protons in an atom's nucleus). This arrangement allows elements with similar chemical properties to be grouped together, forming families or groups. The periodic table is also organized into periods based on the number of electron shells an atom has. This organization helps to determine the periodicity and trends of various properties of elements.