Among the elements with atomic number 9, 12, 16 and 36 which is highly electropositive ? (A)Element with atomic number 9 (B)Element with atomic number 12 (C)Element with atomic number 16 (D)Element with atomic number 36

Options

A. Element with atomic number 9
B. Element with atomic number 12
C. Element with atomic number 16
D. Element with atomic number 36

Explanation

To determine which of the elements with atomic numbers 9, 12, 16, and 36 is the most electropositive, we will analyze each element based on their properties.

### Step 1: Identify the elements
- Atomic number 9: Fluorine (F)
- Atomic number 12: Magnesium (Mg)
- Atomic number 16: Sulfur (S)
- Atomic number 36: Krypton (Kr)

### Step 2: Understand electropositivity
Electropositivity refers to the ability of an element to donate electrons. Elements that are more electropositive tend to be metals, while nonmetals tend to gain electrons and are more electronegative.

### Step 3: Analyze each element
1. **Fluorine (F)**:
- It is a nonmetal and is known to be the most electronegative element. It tends to gain electrons rather than donate them.
- **Conclusion**: Not electropositive.

2. **Magnesium (Mg)**:
- It is an alkaline earth metal. Metals are generally electropositive because they can easily lose electrons to form positive ions.
- **Conclusion**: Likely to be electropositive.

3. **Sulfur (S)**:
- It is a nonmetal and tends to gain electrons to achieve a stable electron configuration.
- **Conclusion**: Not electropositive.

4. **Krypton (Kr)**:
- It is a noble gas and is inert, meaning it does not readily react or donate electrons.
- **Conclusion**: Not electropositive.

### Step 4: Determine the most electropositive element
Among the analyzed elements, magnesium (atomic number 12) is the only one that is a metal and can easily donate electrons, making it the most electropositive element in the given list.

### Final Answer
(B) Element with atomic number 12 (Magnesium) is the most electropositive.

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