True/False
Indicate whether the statement is true or
false.
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1.
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None of the Transactinide elements are radioactive.
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Multiple Choice
Identify the choice that best completes the statement or
answers the question.
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2.
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The most abundant of the Lanthanide elements is
a. | cerium | b. | neodymium | c. | promethium | d. | samarium |
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3.
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What are the atomic numbers of the Transactinide elements?
a. | atomic numbers 100-104 | b. | atomic numbers 104-118 | c. | atomic numbers
118-124 | d. | atomic numbers 124-130 |
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4.
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The elements with atomic numbers greater than that of uranium are
considered
a. | Rare Earth elements. | b. | Lanthanide elements. | c. | Transuranium
elements. | d. | Transactinide elements. |
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5.
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With the exception of ________, the Rare Earth elements are found in relatively
high concentrations in the Earth’s crust.
a. | Lanthanum | b. | Neodymium | c. | Europium | d. | Promethium |
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