Atoms of metals have only a few electrons in their valence shells while atoms of non-metals generally have more electrons in their valence shells. Metallic character is closely related to atomic radius and ionisation enthalpy. Metallic character increases from top to bottom in a group and decreases from left to right in a period. Metallic character is inversely related to electronegativity.
The element with maximum electronegativity belongs to

Options

A. period 2, group 17
B. period 1, group 18
C. period, 3, group 17
D. period, 2, group 16

Explanation

To determine the element with maximum electronegativity and its classification in the periodic table, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Electronegativity**: Electronegativity is the tendency of an atom to attract shared electrons in a chemical bond. The higher the electronegativity, the more an atom attracts electrons.

**Hint**: Remember that electronegativity is a measure of an atom's ability to attract electrons.

2. **Identify the Most Electronegative Element**: In the modern periodic table, fluorine (F) is known to be the most electronegative element.

**Hint**: Look for elements in the periodic table that are known for their high electronegativity, particularly those in the upper right corner.

3. **Locate Fluorine in the Periodic Table**: Fluorine is located in Group 17 (the halogens) of the periodic table.

**Hint**: Groups in the periodic table are numbered from 1 to 18, with Group 17 being the halogen group.

4. **Determine the Period of Fluorine**: Fluorine is found in the second period of the periodic table.

**Hint**: Periods are the horizontal rows in the periodic table, and you can count the rows to find the period number.

5. **Conclusion**: Therefore, the element with maximum electronegativity, which is fluorine, belongs to Group 17 and Period 2.

**Final Answer**: The element with maximum electronegativity belongs to Group 17 and Period 2.

### Summary:
- The most electronegative element is fluorine.
- Fluorine is located in Group 17 (halogens).
- Fluorine is in Period 2.