GCSE Physics – Ions and isotopes

Last updated: 01/06/2020
WJEC GCSE Science – Physics higher Types of radiation GCSE Physics – Ions and isotopes

Learning Objectives

-I can work out the number of protons, electrons and neutrons an atom has
-I can explain why atoms have no overall charge
-I can explain why ions have a charge
-I can define the term isotope
-I can work out the number of protons, electrons and neutrons an isotope has

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  1. Current
  2. Review
  3. Answered

  1. What is the atomic number?

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  2. What is mass number?

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  3. What is true about mass numbers?

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  4. Which number is on the top in the periodic table?

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  5. Which number is on the bottom in the periodic table?

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  6. What do all atoms of the same element have?

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  7. How do we work out the number of neutrons in an atom?

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  8. What is the number of protons equal to in an atom?

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  9. What is the number of electrons equal to in an atom?

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  10. How can we determine what element a substance is?

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  11. Which element has an atomic number of 6?

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  12. Which element has a mass number of 7?

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  13. Which element has an atomic number of 12?

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  14. How many electrons are in an atom of 23^{23}Na11_{11}?

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  15. How many protons are in an atom of 23^{23}Na11_{11}?

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  16. How many neutrons are in an atom of 23^{23}Na11_{11}?

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  17. What is the overall charge of an atom?

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  18. Why do atoms have no overall charge?

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  19. What is an ion?

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  20. What do we call a positively charged atom?

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  21. What do we call a negatively charged atom?

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  22. What happens if an atom loses an electron?

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  23. What happens if an atom gains an electron?

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  24. How many electrons are in an ion of 40^{40}Ca+^+20_{20}?

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  25. How many protons are in an ion of 40^{40}Ca+^+20_{20}?

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