Title: SCARCITY ELEMENTS

Q: Which chemical families do not completely appear on the Scarcity Periodic Table?
- Some transition metals and some actinoids (correct)
- Alkali metals and some actinoids
- Lanthanoids and some transition metals
- Some lanthanoids and some actinoids

Q: Which is the atomic number and name of the last element represented at the Scarcity Periodic Table?
- 92, Uranium (correct)
- 92, Radon
- 103, Polonium
- 86, Radon

Q: Which elements are used in a smart phone?
- Eu, Ta, La, Pr, Cu (correct)
- Al, Bi, Co, K, Mg
- Gd, Tl, Tb, Ta, In
- Pb, Li, B, Br, He

Q: Which of the elements used in smart phones are at serious threat in the next 100 years?
- Ga, As, Y, Ta, Co, C, Tb (correct)
- Y, Ag, Ga, In, As, Ta, C
- Ag, C, La, Nd, Y, Sn, Br
- Eu, Ta, La, Pr, Cu, Ag, Au

Q: Which of the elements used in smart phones are from conflict resources?
- Au , Sn, C, Ta, W (correct)
- W, C, Tl, Sn, Au
- C, Au, Ag, Ta, W
- Al, Bi, C, K, Mg

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