Email Template - A-Level Chemistry
Topic 1 exercise 1 - atomic symbols
Deduce the number of protons, neutrons and electrons in the following species:
1. 11H
2. 178O
3. 42He2+
4. 13254Xe
5. 2713Al3+
6. 23592U
7. 11H+
8. 4521Sc3+
9. 3717Cl-
10. 146C
Use the periodic table to write symbols for the following species:
11. 19 protons, 20 neutrons, 18 electrons
12. 8 protons, 8 neutrons, 10 electrons
13. 1 proton, 2 neutrons, 1 electron
14. 82 protons, 126 neutrons, 80 electrons
15. 53 protons, 74 neutrons, 54 electrons
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