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QR Challenge: Atoms and the Periodic Table Practice

QuestionAnswer
1. What 2 things will the atomic number of an element tell you?
2. Identify the element with 79 protons.
3. Why do electrons stay with the nucleus of an atom instead of flying off in every direction?
4. Identify the element with 47 protons.
5. Identify the element in period 5, group 17.
6. Identify the metalloid in period 3.
7. What kind of electric charge does an electron have?
8. Identify the element with 5 neutrons.
9. Identify the metalloid in group 13.
10. Identify the element with 14 neutrons.
11. Identify the element with 3 protons, 4 neutrons, and 3 electrons.
12. How many protons, neutrons, and electrons are in phosphorus?
13. What does an element’s atomic mass represent?
14. Name at least 2 other elements that have similar properties to the element that has 8 protons, 8 neutrons, and 8 electrons.
15. What is the electric charge of a neutron?
16. What period is the element that has 5 protons, 6 neutrons, and 5 electrons in?
17. What group number is the element that has 7 protons, 7 neutrons, and 7 electrons in?
18. What element has 18 neutrons?
19. What is the formula used to calculate the number of neutrons in an atom?
20. Why do atoms have a neutral electric charge?
21. What group and family does the element that has 12 protons, 12 neutrons, and 12 electrons belong to?
22. What 2 particles are contained in an atom’s nucleus?
23. Where can electrons be found within an atom?
24. What is the electric charge of a proton?
25. Identify the element that has 33 protons.

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