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Ionization Energy vs Threshold Energy

Posted: Thu Oct 31, 2019 7:59 pm
by Yazmin Bocanegra 3L
Are ionization energy and threshold energy the same thing?

Re: Ionization Energy vs Threshold Energy

Posted: Thu Oct 31, 2019 8:01 pm
by Qiu Ya Wu 4I
Threshold energy and ionization energy both have to do with the minimum energy required to remove an electron from an element but threshold energy refers to the energy needed to remove an electron from a metal (photoelectric effect) while ionization energy has to do with the energy needed to remove an electron from a gas.

Re: Ionization Energy vs Threshold Energy

Posted: Sat Nov 02, 2019 2:36 pm
by Simon Dionson 4I
Threshold energy is the minimum energy needed to remove an electron from a metal surface (photoelectric effect). Ionization energy is the energy needed to remove an electron from an element.

Re: Ionization Energy vs Threshold Energy

Posted: Sat Nov 02, 2019 3:20 pm
by Matthew Tsai 2H
Threshold energy (represented by the work function) is relevant to the photoelectric effect because it refers to the energy required to remove a single electron from a certain metal surface. On the other hand, ionization energy is defined as the energy required to remove an electron from an atom in the gas phase.

Re: Ionization Energy vs Threshold Energy

Posted: Sun Nov 03, 2019 4:57 pm
by ShreyaKannan1B
Qiu Ya Wu 4F wrote:Threshold energy and ionization energy both have to do with the minimum energy required to remove an electron from an element but threshold energy refers to the energy needed to remove an electron from a metal (photoelectric effect) while ionization energy has to do with the energy needed to remove an electron from a gas.


Thanks for this!