9. What group of elements generally have the lowest second ionization energy?Group IGroup IIGroup VIGroup VII
Question
9. What group of elements generally have the lowest second ionization energy?
- Group I
- Group II
- Group VI
- Group VII
Solution
Group I elements generally have the lowest second ionization energy.
Here's why:
Ionization energy is the energy required to remove an electron from an atom. The first ionization energy is the energy to remove the first electron, the second ionization energy is the energy to remove the second electron, and so on.
Group I elements (alkali metals) have one electron in their outermost shell. This electron is relatively easy to remove, resulting in a low first ionization energy. However, once this electron is removed, the resulting ion has a completely filled outer shell, which is very stable. Therefore, the second ionization energy - the energy required to remove another electron - is much higher.
In contrast, elements in other groups have more than one electron in their outermost shell. Therefore, their second ionization energy is lower than that of Group I elements because it's easier to remove a second electron from these elements.
So, in general, Group I elements have the lowest second ionization energy.
Similar Questions
Which of the following elements has the smallest first ionization energy?Group of answer choicesAsFMgIRb
Which of these elements has the largest first ionization energy?A.SeB.ClC.SbD.Pb
Which of the following elements has the lowest first ionization energy?A.Scandium (Sc)B.Oxygen (O)C.Phosphorus (P)D.Strontium (Sr)SUBMITarrow_backPREVIOUS
Choose and then fill in the blank with the element that has the higher first ionization energyBr or I
The first ionisation energy from top to bottom in group 1 of the periodic table.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.