a level applied science- chemistry- 4.5 / 5 based on 3 ratings ? Applied Scienceatomic structures (chemistry)A2/A-levelAQA Created by: ellioc99Created on: 03-04-17 12:09 10839241657 Across 1. RAM is the weighted mean mass of an atom compared to 1/12 of carbon-12. what does RAM stand for (8, 6, 4) 5. How many electrons are in the first shell (3) 6. The total number of protons and neutrons is known as (6, 4) 7. When an ion gains an electron its..... charged (10) 10. A charged particle due to the loss or gain of an electron (3) Down 2. When an ion loses an electron its..... charged (10) 3. The number of protons and electrons is known as (6, 6) 4. Found in the nucleus and have a positive charge (7) 8. Found in the nucleus and do NOT have any charge (8) 9. How many electrons are in the second shell (5)
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