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Why is the first ionization energy of arsenic is greater than the first ionization energy of germanium because?
Wiki User
∙ 15y ago
There's two ways to answer this question.
First electron configurations with half-filled sublevels are more stable then electron configurations that don't have half-filled sublevels. Since Selenium is one elctron away from achieving a more stable half-filled sublevel configuration it more readily gives up it's outermost electron, so less energy is requires to remove the outermost electron. Arsenic already has the stable configuration of half-filled sublevel so it wouldn't give up it's electron as readily, so more energy is required to remove it.
Another way to look at it is that Selenium's outermost electron is in a p orbital that already has an electron so there is electron electron repulsion present in that orbital so it's attraction to the nucleus is less which is why less energy is required to remove it so the ionization energy is less. Arsenic has it's outermost electron unpaired in the p orbital so there is no electron electron repulsion present in that orbital so more energy is required to remove it then for Selenium's outer most electron.
Hope this helps!
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoArsenic is closer to having a full outer electron shell ( AKA noble gas configuration) , thus it does not want to give up any of its electrons. Germanium is not as close.
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germanium has greater mass and thus is harder to move
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Which has a greater ionization energy beryllium or germanium?
Beryllium has greater ionization energy, with 899 kJ/mol versus Germanium's 762 kJ/mol. The general trend (most prominently displayed in the representative elements) in the periodic table is increasing ionization energy across a period, and decreasing ionization energy down a group.
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potassium is greater in the second ionization energy.
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kwana warkawa
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Which has the lower electron affinity germanium or selenium?
Selenium has the greater electron affinity
Why would you use silicon diodes instead of germanium?
Though germanium diodes were the first ones fabricated, several factors make silicon the choice vs. germanium diodes. Silicon diodes have a greater ease of processing, lower cost, greater power handling, less leakage and more stable temperature characteristics than germanium diodes. Germanium diodes' lower forward drop (.2V to .3V versus .7V to 1.0V) make them better at small signal detection and rectification.
Which element in each pair has a greater first ionization energy Lithium Boron?
Lithium
Is fluorine the most reactive nonmetal?
With greater ionization energy, nonmetals have greater reactiveness. This is because they don't want to lose electrons at all! They will instead gain electrons to complete the octet.This proves true in the element Fluorine.
Who has greater electronegativity bromine or arsenic?
Bromine, its as simple as its more to the RHS of the periodic table
How does the ionization energy of Ne compare to that of Se?
Neon is a much smaller atom than selenium because neon has fewer occupied energy levels so it has a considerably smaller atomic radius. For that reason, it will be more difficult to remove an electron from Ne than Se, so Ne has the greater ionization energy.
