Podcast
Questions and Answers
What happens to the atomic radii as we move along the 3d series?
What happens to the atomic radii as we move along the 3d series?
- Increase rapidly
- Remain constant
- Decrease less rapidly (correct)
- Decrease rapidly
Why do ionization energies increase only slightly along the 3d series?
Why do ionization energies increase only slightly along the 3d series?
- Decrease in nuclear charge
- Addition of more electrons to 4s orbital
- Formation of highly charged ions
- Increase in shielding effect by 3d electrons (correct)
Which configuration do the doubly or more highly charged ions in the d-block have?
Which configuration do the doubly or more highly charged ions in the d-block have?
- Only s-electrons
- Both s and d electrons
- No 4s electrons (correct)
- Only d-electrons
Why is there a general trend of increasing values of second ionization enthalpy as the effective nuclear charge increases?
Why is there a general trend of increasing values of second ionization enthalpy as the effective nuclear charge increases?
The trend of steady increase in second and third ionization enthalpy breaks for the formation of which ions?
The trend of steady increase in second and third ionization enthalpy breaks for the formation of which ions?
Which factor is responsible for the value of ionization enthalpy?
Which factor is responsible for the value of ionization enthalpy?
Why does ionization enthalpy generally increase along a period in the periodic table?
Why does ionization enthalpy generally increase along a period in the periodic table?
Why are transition elements known for forming colored compounds?
Why are transition elements known for forming colored compounds?
Which factor contributes the most to the stability of higher oxidation states in transition metals?
Which factor contributes the most to the stability of higher oxidation states in transition metals?
Why do transition metals have higher melting points compared to main group elements?
Why do transition metals have higher melting points compared to main group elements?
Why do lanthanoids generally have higher ionization enthalpies compared to actinoids?
Why do lanthanoids generally have higher ionization enthalpies compared to actinoids?
Why does copper not replace hydrogen from acids?
Why does copper not replace hydrogen from acids?
Why are the E- values for Mn, Ni, and Zn more negative than expected?
Why are the E- values for Mn, Ni, and Zn more negative than expected?
What is the reason behind the general trend of increasing values of second ionization enthalpy as the effective nuclear charge increases?
What is the reason behind the general trend of increasing values of second ionization enthalpy as the effective nuclear charge increases?
How do the properties of Mn2+ and Zn2+ ions relate to their respective E- values?
How do the properties of Mn2+ and Zn2+ ions relate to their respective E- values?
Why does copper have a positive E∘ value compared to hydrogen?
Why does copper have a positive E∘ value compared to hydrogen?
