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The elements in which electrons are prog...

The elements in which electrons are progressively filled in 4f-orbitals are calleD:

A

actinoids

B

transition elements

C

lanthanoids

D

halogens

Text Solution

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The correct Answer is:
C
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RESONANCE-PERIODIC TABLE & PERIODICITY-Exercise
  1. The period number in the long form of the periodic table is equal to:

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  2. Which one of the following statements related to the modern periodic t...

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  3. The elements in which electrons are progressively filled in 4f-orbital...

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  4. Which of the following statements is not correct regarding hydrogen:

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  5. Atomic number of Ag is 4.7. in the same group, the atomic numbers of e...

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  6. In modern periodic table, the element with atomic number Z = 118 will ...

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  7. The order of screening effect of electrons of s, p, d and f orbitals o...

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  8. Which of the following is generally true regarding effective nuclear c...

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  9. Among following species which of them have maximum Z(eff)

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  10. From the given set of species, point out the species from each set hav...

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  11. The atomic number of an element which can not show the oxidation stat...

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  12. The most common oxidation state of an element is -2. the number of ele...

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  13. Most stable oxidation state of gold is:

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  14. Which can have both +ve and -ve oxdiation states in their compounds

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  15. The oxidation state of nitrogen varies from:

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  16. Which metal exhibits more than one oxidation states in their compounds

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  17. Electrons of which subshell do not partcipate in bonding due to inert ...

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  18. Tnallium shows different oxidation states because:

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  19. In which of the following elements +3 oxidation state is more stable t...

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  20. Which of the following is correct order of stability:

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