An element has electronic configuration 2,8,4. It will be classified as

Options

A. metal
B. non metal
C. metalloid
D. none of these

Answer

To classify the element with the electronic configuration 2, 8, 4, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Electronic Configuration**: The given electronic configuration is 2, 8, 4. This means that the element has 2 electrons in the first shell, 8 electrons in the second shell, and 4 electrons in the third shell.

2. **Calculate the Total Number of Electrons**: To find the atomic number (Z) of the element, we need to sum the electrons in all shells:
\[ Z = 2 + 8 + 4 = 14 \]
So, the atomic number of the element is 14.

3. **Identify the Element**: The element with atomic number 14 is silicon (Si).

4. **Classify the Element**: Silicon is located in group 14 of the periodic table and is classified as a metalloid. Metalloids have properties of both metals and non-metals.

5. **Conclusion**: Therefore, the element with the electronic configuration 2, 8, 4 is classified as a metalloid.

### Final Answer:
The element with electronic configuration 2, 8, 4 is classified as a metalloid (specifically silicon).

---