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1. What makes up an atoms nucleus?
2. What particles surround an atomic nucleus?
3. What is the relative charge of a proton?
4. What is the relative charge of an electron?
5. What does the mass number tell us about an atom?
6. What does the atomic number tell us about an atom?
7. What do we get when we subtract the atomic number from the mass number?
8. What decides the type of atom?
9. How are elements in today’s periodic table organised?
10. Isotopes have...
11. Isotopes have different numbers of...
12. What type of bond is formed from a reaction between a metal and a non-metal?
13. Fluorine has a mass number of 19, and a atomic number of 9. What is it's electronic configuration?
14. What type of bond is formed from non-metals reacting?
15. What compound is represented by the formula NaCl?
16. What is the maximum amount of electrons in the second shell?
17. Most elements in a periodic table are...
18. Why do group 1 elements react vigorously with water?
19. Group 0 elements are...
20. Why are group 0 elements so unreactive?
