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Chemistry Help! Completely Confused?

  1. Unless otherwise instructed, you may use the periodic table in the Chemistry: Problems and Solutions book for this quiz.

Which of the following elements is only made in the laboratory?

(Points : 1)

fermium

neodymium

cerium

thorium

  1. Which of the following is an inner transition metal?

(Points : 1)

osmium (Os)

hafnium (Hf)

uranium (U)

radium (Ra)

  1. What are elements with atomic numbers greater than 92 called?

(Points : 1)

radioactive

lanthanide

actinide

transuranium

  1. Which of the following best describes the element lanthanum?

(Points : 1)

inner transition metal

nonmetal

transuranium

radioactive

  1. Which of the following is a metal from the lanthanide series?

(Points : 1)

dysprosium (Dy)

americium (Am)

mendelevium (Md)

rutherfordium (Rf)

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