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Lanthanoids are-...

Lanthanoids are-

A

14 elements in the seventh periods (atomic number 58 to 71) that are filling 4l-orbital

B

14 elements in the sixth period (atomic number 90 to 103) that are filling 4l-orbital

C

14 elements in seventh period (atomic number 90 to 103) that are filling 5l-orbital

D

14 elements in the sixth period (atomic number 58 to 71) that are filling 4l-orbital

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The correct Answer is:
D
Lanthanoids are 14 elements in the sixth period (atomic number 58 to 71) that filling `4f`- orbital.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 13-PAPER I OBJECTIVE TYPE
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  3. Lanthanoids are-

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  5. RC-O+2htoRCH(2)OH for the above reaction, the catalyst used is

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  6. Electron affinity of grou -16 elements varies as

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  7. Which one of the following reactions represent the oxidising properly ...

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  8. Which of the following is considered to be an anticancer species?

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  9. Which one of the following is an optically active compound?

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  10. Given the following sequence of reaction CH(3)CH(2)I overset(NaCN)(r...

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  11. On heated ammonium formate,the compund formed is

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  13. Glycogen on hydrolysis gives

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  14. Bakelite is a product of the reaction between:

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  15. What kind of isomerism exists between [Cr(H(2)O)(6)]Cl(3) (violet) and...

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  18. Which of the following does not have a metal carbon bond?

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