AQA A Level Chemistry - Atomic Structure

Across

• 1. The ion hits a plate where an electron is transferred to the ion to make it an atom. This makes an electronic signal which is used to make a mass spectrum (3, 8)
• 6. Suggested that all matter was made from indestructible atoms (4, 6)
• 7. Have different numbers of electrons but the same number of protons (3)
• 8. Discovered that electrons are arranged in shells that orbit the nucleus and they determine reactivity. Protons form the nucleus (5, 4)
• 9. Electrons in the same orbital repel each other as they are both negative, making them easier to remove (8, 9)
• 10. Created the "plum pudding" model where electrons are in a sphere of positive charge (1, 1, 8)