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46. To which element group does argon belong?
A. Alkaline B. Metalloids C. Lanthanide D. Noble Gas
47. Which element would you expect to have a higher mass:cadmium or zinc?
A. cadmium B. zinc
C. both of them D. none of them
48. What is the atomic mass of carbon?
A. 6
B. 16
C. 26
D. 36
49. What do you call the element series from atomic number57-71?
A. actinides B. Lanthanides C. halogens D. Noble gases
50. Which element has a symbol that starts with a letter different from the first one in its
name?
A. aluminum
B. copper
C. gold C. rhenium?


Sagot :

Answer:

46. D. Noble Gases

47. A. Cadmium

48. A. 6

49. B. Lanthanides

50. C. Gold

Explanation:

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