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The best modern answer would involve quantum chemistry, but an easier to understand explanation is that the outermost electrons in fluorine are much closer to the nucleus that provides the attraction to hold the electrons and nucleus together as an atom than are the outermost electrons in iodine. This is sometimes called the "screening effect" of inner shell electrons that weakens the attraction between the nucleus and the outer shell electrons in large atoms such as iodine.
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Which element in each pair has the greatest ionization energy fluorine or iodine?
The ionization energy of fluorine is 1681 kJ/mol (the first) and the ionization energy of iodine is 1008,4 kJ/mol.
What are the chemical symbols of iodine and fluorine?
On the periodic table, the symbol for iodine is I and the symbol for fluorine is F.
What is the biggest atom bromine fluorine chlorine or iodine?
iodine
Does Iodine have less electron affinity than fluorine?
Yes. It's true. Chlorine has the highest electron affinity, then Fluorine, Bromine and Iodine
What are the elements that belong in the halogen family of elements?
Fluorine, Chlorine, Bromine, Iodine, and Astatine.
Why does boron have a higher ionization energy than fluorine?
Because fluorine's size is lower than that of iodine, it has a greater ionization energy than iodine. Fluorine, on the other hand, appears to have a smaller shielding effect. As a result, fluorine's nucleus attracts more valence electrons than iodine's.
Which element in each pair has the greatest ionization energy fluorine or iodine?
The ionization energy of fluorine is 1681 kJ/mol (the first) and the ionization energy of iodine is 1008,4 kJ/mol.
Will fluorine replace iodine in a reaction?
Yes. Fluorine is more reactive than iodine.
What are the chemical symbols of iodine and fluorine?
On the periodic table, the symbol for iodine is I and the symbol for fluorine is F.
What is the biggest atom bromine fluorine chlorine or iodine?
iodine
What is the name of the compound 1 iodine and 5 fluorine?
Iodine Pentafluoride
What has the most metallic character fluorine chlorine bromine or iodine?
Iodine
Which of the element chlorine fluorine iodine and br is the strongest oxidizing agent?
Fluorine.
Does Iodine have less electron affinity than fluorine?
Yes. It's true. Chlorine has the highest electron affinity, then Fluorine, Bromine and Iodine
What are the elements that belong in the halogen family of elements?
Fluorine, Chlorine, Bromine, Iodine, and Astatine.
The diatomic element in this group.?
Iodine or Fluorine . . . A+
Diatomic element in this group.?
Iodine or Fluorine . . . A+
