Atomic Structure
1. Who discovered the neutron?
✅ **Correct Answer: C) James Chadwick**
🔹 Neutron was discovered by **James Chadwick** in 1932.
2. The atomic number of an element represents?
✅ **Correct Answer: A) Number of protons**
🔹 **Atomic number (Z)** is the total number of **protons** in an atom’s nucleus.
3. The element with the highest electronegativity is?
✅ **Correct Answer: C) Fluorine**
🔹 Fluorine has the **highest electronegativity** (3.98) on the Pauling scale.
4. Which subatomic particle has no charge?
✅ **Correct Answer: D) Neutron**
🔹 Neutron is **neutral**, meaning it has **no charge**.
5. What is the charge of an electron?
✅ **Correct Answer: C) Negative**
🔹 An electron carries a **negative charge** of **-1.6 × 10⁻¹⁹ C**.