Ionization Energy

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Frederick Keith_4C
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Joined: Thu Sep 26, 2019 12:19 am

Ionization Energy

Postby Frederick Keith_4C » Sun Oct 27, 2019 12:41 pm

Why is ionization energy always positive????? And I understand that the second ionization energy is always larger than the first, but that can be said for every other electron removed thereafter. So my other question is how many ionization energies are typically calculated or found for each element before the values start getting ridiculous?

philipraj_1F
Posts: 52
Joined: Fri Aug 30, 2019 12:16 am

Re: Ionization Energy

Postby philipraj_1F » Sun Oct 27, 2019 12:42 pm

It is because you always need energy to remove an electron

Bryce Barbee
Posts: 103
Joined: Wed Sep 18, 2019 12:20 am

Re: Ionization Energy

Postby Bryce Barbee » Sun Oct 27, 2019 12:43 pm

Ionization energy is always positive because it requires energy in the system to remove the electron. If it was negative, that means that it is loosing energy.

Nuoya Jiang
Posts: 99
Joined: Sat Sep 14, 2019 12:17 am

Re: Ionization Energy

Postby Nuoya Jiang » Sun Oct 27, 2019 1:09 pm

A positive sign means taking energy into the system or the system needs energy to so some certain activity. The negative sign means the system releases energy or loses energy during activity.

kendal mccarthy
Posts: 109
Joined: Wed Nov 14, 2018 12:22 am

Re: Ionization Energy

Postby kendal mccarthy » Sun Oct 27, 2019 2:12 pm

It is positive because ionization energy is the amount of energy required to remove an electron, which requires an input of energy. And it depends on the number of electrons and the number of subshells filled generally when dealing with ionization energies.

Jessa Maheras 4F
Posts: 121
Joined: Fri Aug 02, 2019 12:16 am

Re: Ionization Energy

Postby Jessa Maheras 4F » Sun Oct 27, 2019 7:07 pm

Ionization energy should increase for each subsequent electron removed from the system - I believe this is due to the greater force between remaining electrons and the positively charged nucleus. How much the difference in in ionization energy between each electron removed is probably outside the scope of this course.

Sadhana_Dicussion_4A
Posts: 51
Joined: Sat Sep 07, 2019 12:19 am

Re: Ionization Energy

Postby Sadhana_Dicussion_4A » Sun Oct 27, 2019 7:12 pm

Ionization energy is always positive because it requires energy to remove electrons (endothermic). The negatively charged electrons are attracted to the positively charged nucleus so it requires extra energy to remove the electrons.

Martina
Posts: 111
Joined: Thu Jul 25, 2019 12:16 am

Re: Ionization Energy

Postby Martina » Sun Oct 27, 2019 9:06 pm

Ionization energy is always positive because you need energy to remove the electron. Second ionization energy is higher because the charge difference between the positive nucleus and the electrons is greater, so it is even more difficult to remove another electron.

Amanda Ung 4D
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Ionization Energy

Postby Amanda Ung 4D » Sun Oct 27, 2019 9:17 pm

Ionization energy is always positive because you have to add energy to remove an electron (an endothermic process).

Charysa Santos 4G
Posts: 107
Joined: Wed Sep 18, 2019 12:21 am

Re: Ionization Energy

Postby Charysa Santos 4G » Sun Oct 27, 2019 9:29 pm

Just think of it as having to insert energy (+) in order to take out the electron because the electron is being held to the atom by the positive charge of the nucleus.


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