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Which of the following elements is an ac...

Which of the following elements is an actinide?

A

Ytterbium

B

Lutetium

C

Curium

D

Erbium

Text Solution

Verified by Experts

The correct Answer is:
C
Any of the series of fifteen metallic elements from actinium (atomic number 89) to lawrencium (atomic number 103) in the periodic table. They are all actinide,radioactive.
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Knowledge Check

  • Which of the following elements is not an actinide?

    A
    Terbium
    B
    Californium
    C
    Uranium
    D
    Cruium

  • Which of the following elements is a lanthanide (Rare-earth element) ?

    A
    Cadmium
    B
    Californium
    C
    Cerium
    D
    Cesium

  • Which of the following elements is a lanthanide (Rare-earth element)

    A
    Cadmium
    B
    Californium
    C
    Cerium
    D
    Cesium

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    Which of the following elements is NOT a Halogen group element?

    Which of the following elements is not an f-block element?

    The f-block elements are those in which the differentiating electron enters the (n-2)f orbital. There are two series of f-block elements corresponding to filling of 4f and 5f-orbitals called lanthanides and actinides respectively. They show different oxidation states depending upon the stability of f^0, f^7 and f^14 configurations, though the principal oxidation state is +3. There is a regular decrease in size of lanthanide ions with increase in atomic number and it is known as lanthanide contraction. As a result of this, the basic character of oxides and hydroxides decreases from first element (La) to last element (Lu). All the actinides are radioactive and therefore, it is difficult to study their chemical nature. Which of the following statements is not true ?

    Which of the following is not an actinide ?

    Which of the following is NOT an actinide?

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