Lanthanides and actinides resemble in:

Important Questions on The d- and f-block Elements

EASY

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 1>Q 83

Lanthanoid contraction occurs because

EASY

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 1>Q 84

All those elements belong to $\mathrm{f}-$block, whose atomic numbers are

EASY

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 1>Q 85

A significant reduction in atomic size with increase in atomic number is a characteristic of elements of

EASY

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 1>Q 86

Lanthanoids are

EASY

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 1>Q 87

The lanthanide contraction relates to

EASY

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 1>Q 88

Which of following statements is not correct?

EASY

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 1>Q 89

Most common oxidation states of $\mathrm{Ce}$ (cerium) are

EASY

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 1>Q 90

Arrange ${\mathrm{Ce}}^{3+}, {\mathrm{La}}^{3+}, {\mathrm{Pm}}^{3+}$ and ${\mathrm{Yb}}^{3+}$ in the increasing order of their ionic radii.