Ionization Energy vs Threshold Energy

Moderators: Chem_Mod, Chem_Admin

Yazmin Bocanegra 3L
Posts: 51
Joined: Thu Jul 25, 2019 12:17 am

Ionization Energy vs Threshold Energy

Postby Yazmin Bocanegra 3L » Thu Oct 31, 2019 7:59 pm

Are ionization energy and threshold energy the same thing?

Qiu Ya Wu 4I
Posts: 107
Joined: Fri Sep 20, 2019 12:17 am

Re: Ionization Energy vs Threshold Energy

Postby Qiu Ya Wu 4I » Thu Oct 31, 2019 8:01 pm

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.

Simon Dionson 4I
Posts: 107
Joined: Sat Sep 14, 2019 12:17 am

Re: Ionization Energy vs Threshold Energy

Postby Simon Dionson 4I » Sat Nov 02, 2019 2:36 pm

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.

Matthew Tsai 2H
Posts: 101
Joined: Wed Sep 18, 2019 12:20 am

Re: Ionization Energy vs Threshold Energy

Postby Matthew Tsai 2H » Sat Nov 02, 2019 3:20 pm

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.

ShreyaKannan1B
Posts: 51
Joined: Wed Sep 11, 2019 12:15 am

Re: Ionization Energy vs Threshold Energy

Postby ShreyaKannan1B » Sun Nov 03, 2019 4:57 pm

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!


Return to “Photoelectric Effect”

Who is online

Users browsing this forum: No registered users and 1 guest