Elements with electronic configuration `ns^1` are known as

Options

A. Inert gases
B. Alkali metals
C. Transuranic elements
D. Halogons

Answer

To solve the question, "Elements with electronic configuration `ns^1` are known as," we can follow these steps:

### Step 1: Understand the Electronic Configuration
The electronic configuration `ns^1` indicates that there is one electron in the outermost s orbital of the atom. Here, 'n' represents the principal quantum number, which corresponds to the period in the periodic table.

### Step 2: Identify the Group
Elements with the electronic configuration `ns^1` belong to Group 1 of the periodic table. This group is also known as the alkali metals. The alkali metals include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

### Step 3: Confirm the Position in the Periodic Table
The alkali metals are located in the s-block of the periodic table. The 's' block consists of groups 1 and 2, where the outermost electrons are in s orbitals.

### Step 4: Conclusion
Based on the above understanding, elements with the electronic configuration `ns^1` are known as alkali metals.

### Final Answer
**Elements with electronic configuration `ns^1` are known as alkali metals.**

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