Answer:
1. nucleus and electron
2. nucleus
3. Positively charged, negatively charged
4. zero
5. protons and electrons
6. Capacitor
Step-by-step explanation:
1. nucleus and electron - Nucleus is the central part of atom which is positively charged
2. nucleus
3. Positively charged, negatively charged - Proton have +1 change and electron have -1 charge
4. zero - Neutrons are neutral in nature and hence have no charge
5. protons and electrons
6. Capacitor