🔬 Part 1: Multiple Choice Questions

Instructions: Choose the BEST answer for each question by filling in the circle.

⚛️ Part 2: Multiple Selection & Analysis

Instructions: For question 4, tick ALL correct answers. For question 5, choose one answer and explain your thinking.

📋 Answer Key (Teacher Use)

1. Proton (c) - Protons carry a positive charge

2. In electron shells around the nucleus (b) - Electrons orbit in energy levels/shells

3. Carbon (b) - Atomic number = number of protons = 6 for carbon

4. Correct answers: a, c, d (nucleus contains protons & neutrons, has most mass, is very small compared to atom)

5. It becomes negatively charged (b) - Adding an electron creates more negative charges than positive charges

Extension: Look for explanations mentioning that electrons are negative, so adding one creates an imbalance with more negative particles than positive protons.