Ionization Energy (2.61)  [ENDORSED]

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Megan Potter 1G
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Joined: Fri Apr 06, 2018 11:04 am

Ionization Energy (2.61)

Postby Megan Potter 1G » Mon May 07, 2018 11:21 am

2.1 is just an example, but the question is "Which member of each pair has the smaller first ionization energy?"
a) Ca or Mg?
b) Mg or Na?
c) Al or Na?

Can someone explain to me what ionization energy is and what it means to have a smaller FIRST ionization energy?

breannasung_1K
Posts: 30
Joined: Fri Apr 06, 2018 11:05 am

Re: Ionization Energy (2.61)  [ENDORSED]

Postby breannasung_1K » Mon May 07, 2018 12:07 pm

ionization energy is the energy needed to remove an electron. First ionization energy refers to the energy needed to remove the FIRST electron.

Komal Prakash 1H
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Re: Ionization Energy (2.61)

Postby Komal Prakash 1H » Tue May 08, 2018 2:50 am

As explained above, first ionization energy is the energy required to move the first electron. Thus, when working with questions like in the example, when choosing which has the smaller first ionization energy you have to consider which one is more stable. The more stable elements have more fully occupied shells and are closer to fulfilling the octet rule and therefore require more energy to remove an electron.


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