How many groups and how many periods are there in long form of periodic table?

Explanation

To determine how many groups and periods are present in the long form of the periodic table, we can follow these steps:

### Step 1: Understand the Structure of the Long Form of the Periodic Table
The long form of the periodic table, also known as Bohr's periodic table, organizes elements based on their atomic number and electron configuration.

**Hint:** The periodic table is organized into groups (columns) and periods (rows).

### Step 2: Identify the Number of Groups
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