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QR Challenge: Periodic Table Answers

Created using the ClassTools QR Treasure Hunt Generator

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Teacher Notes

A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

Questions / Answers (teacher reference)

Question

Answer

1. halogens1
2. A and B2
3. D3
4. atomic number4
5. noble gases5
6. mass number-atomic number6
7. C7
8. B8
9. both members of the alkali metal family9
10. B10
11. Aluminum is not an alkali metal11
12. alkaline earth metals12
13. Ca-alkaline earth metal, Fe-transition metal, Br-halogen13
14. A14
15. B15
16. B16
17. B17
18. alkali metal18
19. B19
20. C20
21. B21
22. 13 protons, 14 neutrons, 13 electrons22
23. flourine23
24. D24
25. B25
26. 24 protons, 28 neutrons, 24 electrons26
27. C27
28. oxygen28
29. Mg with two valence electrons29
30. the outer valence shell is incomplete, additionally this is the Bohr diagram for silicon30
31. transition metals31
32. C32
33. magnesium has two valence electrons, not three33
34. Br with 7 valence electrons34
35. B35
36. sulfur36
37. nonmetal, this is the Bohr diagram for oxygen37
38. Si with 4 valence electrons38
39. B39
40. C40
41. 1s2 2s2 2p6 3s1 or [Ne]3s141
42. rubidium has one valence electron, not two42
43. B43
44. A44
45. 1s2 2s2 2p6 3s2 3p4 or [Ne]3s2 3p445

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=halogens

Question 1 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_and_B

Question 2 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=D

Question 3 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=atomic_number

Question 4 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=noble_gases

Question 5 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=mass_number-atomic_number

Question 6 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=C

Question 7 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 8 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=both_members_of_the_alkali_metal_family

Question 9 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 10 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Aluminum_is_not_an_alkali_metal

Question 11 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=alkaline_earth_metals

Question 12 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Ca-alkaline_earth_metal,_Fe-transition_metal,_Br-halogen

Question 13 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=A

Question 14 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 15 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 16 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 17 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=alkali_metal

Question 18 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 19 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=C

Question 20 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 21 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=13_protons,_14_neutrons,_13_electrons

Question 22 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=flourine

Question 23 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=D

Question 24 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 25 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=24_protons,_28_neutrons,_24_electrons

Question 26 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=C

Question 27 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=oxygen

Question 28 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Mg_with_two_valence_electrons

Question 29 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=the_outer_valence_shell_is_incomplete,_additionally_this_is_the_Bohr_diagram_for_silicon

Question 30 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=transition_metals

Question 31 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=C

Question 32 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=magnesium_has_two_valence_electrons,_not_three

Question 33 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Br_with_7_valence_electrons

Question 34 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 35 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=sulfur

Question 36 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=nonmetal,_this_is_the_Bohr_diagram_for_oxygen

Question 37 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Si_with_4_valence_electrons

Question 38 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 39 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=C

Question 40 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=1s2_2s2_2p6_3s1_or_[Ne]3s1

Question 41 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=rubidium_has_one_valence_electron,_not_two

Question 42 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=B

Question 43 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=A

Question 44 (of 45)

 


Periodic Table Answers: QR Challenge

https://www.classtools.net/QR/decode.php?text=1s2_2s2_2p6_3s2_3p4_or_[Ne]3s2_3p4

Question 45 (of 45)