Inert gas not having _____ electrons in the valence shell is ____

Explanation

To solve the question "Inert gas not having _____ electrons in the valence shell is ____", we need to analyze the properties of inert gases and their electron configurations. Here’s a step-by-step solution:

### Step 1: Understand Inert Gases
Inert gases, also known as noble gases, are elements that have a complete valence shell. This means that their outermost electron shell is filled to capacity, which is typically 8 electrons (known as the octet rule), except for helium.

**Hint:** Inert gases are characterized by having a full outer electron shell.

### Step 2: Identify the Inert Gases
...