Ks3 Atomic Structure Worksheet

This tells you the number of protons . In a neutral atom, it also tells you the number of electrons .

1. Nucleus, 2. Proton, 3. Neutron, 4. Electron, 5. Shell Section 2: 1. atom, element; 2. nucleus; 3. Protons, positive, electrons, negative; 4. Neutrons; 5. protons, electrons Section 3: 1. F, 2. T, 3. F, 4. T, 5. T Section 4: Proton → Positively charged; Neutron → Particle with no charge; Electron → Negatively charged; Nucleus → The central part; Shell → The space where electrons are found Section 5: 1. 3, 2. neutral (equal protons & electrons), 3. 2 shells Section 6: Proton → Nucleus; Neutron → 0 (or neutral); Electron → Shells/outside nucleus → –1 ks3 atomic structure worksheet

Before we dive into the worksheet specifics, it is vital to understand the "why." At KS3, students are expected to move away from the idea that atoms are just tiny, hard spheres (a la John Dalton) and begin to see them as complex systems. This tells you the number of protons

: These tiny particles orbit the nucleus in "shells." They have a negative (-1) charge and almost zero mass. Essential Worksheet Components Nucleus, 2