Question

[Hawa Kamara 1F]

Is ionization or electronegativity the same thing, or what makes them different? I believe they have the same trend on the period table.

[Kavya Immadisetty 2B]

Ionization energy is the energy needed to remove electrons from atoms. Electronegativity is how much an atom attracts electrons.

[Eunice Nguyen 4I]

Electronegativity is an atom's ability to attract and bind with electrons, while ionization energy is the energy required to remove an electron from a neutral atom in its gaseous phase.
They have the same trend because if the ionization energy of an atom is high, the atom is more reluctant in giving up an electron. This means that the atom will also be more electronegative, because it would rather attract an electron than give one up.

[Megan Jung 3A]

Ionization energy is the energy required to remove an electron from an atom's outermost valence shell. Electronegativity refers to the atom's ability to attract electrons.

[jisulee1C]

Ionization energy increases across the periodic table as does electronegativity which is a result electrons being more tightly held due to the nuclear pull increasing.

[Sjeffrey_1C]

Also keep in mind that although the trend is the same for both, ionization dips at oxygen (meaning oxygen is an exception to the trend) while electronegativity trend continues through oxygen.

[505106414]

Can someone explain the exception for oxygen and nitrogen? It was on the midterm and I got it wrong.

[Melvin Reputana 1L]

The first ionization energy of oxygen is lower than the first ionization energy of nitrogen because the repulsive force of electrons in oxygen are stronger than the effective nuclear charge of oxygen. As a result, the first ionization of oxygen is lower as it it is easier to remove the electrons on oxygen compared to nitrogen whose effective nuclear charge is stronger.

[Amanda Lin 2I]

Can someone explain the exception for oxygen and nitrogen? It was on the midterm and I got it wrong.

Nitrogen has 3 e- in its p orbital. Oxygen has 4 e- in its p orbital, which results in an electron pair. The electron-electron repulsion from this pair causes a lower ionization energy.

[Jasmine 2C]

Can someone explain the exception for oxygen and nitrogen? It was on the midterm and I got it wrong.

I got this question wrong too :(

[Deana Moghaddas 3E]

think of ionization energy as the energy needed to make an ion (to remove an electron)
think of electronegativity as an atom's attraction to gain electrons

[Siya Shah 1J]

Can someone explain the exception for oxygen and nitrogen? It was on the midterm and I got it wrong.

According to the trend, oxygen should have a higher ionization energy than nitrogen. However, nitrogen has its p-subshell half-filled and is relatively stable and low energy. Oxygen has one more electron, paired up with the opposite spin, in its p-subshell than nitrogen, which causes electron repulsion, making oxygen less stable than nitrogen. Therefore, oxygen has a lower ionization energy than nitrogen -- it's easier to remove an electron from oxygen than it is to do the same from nitrogen.

[CalvinTNguyen2D]

They're somewhat related, but they're not the same!
Ionization energy is the amount of energy required to remove an electron from the atom, while electronegativity is how much an atom attracts electrons towards it!

[605208780]

Electronegativity is how much an atom attracts electrons. Ionization energy is needed to remove electrons from atoms.

[Kishan Shah 2G]

They have the same trend but they mean different things. Electronegativity refers to the amount of pull that an atom can have on an outside electron because it wants the electron. Ionization energy means the amount of energy it takes to remove one electron from an atom.

[Jessica Tran_3K]

Ionization energy is the amount of energy required to remove an electron from an atom, while electronegativity is the amount of energy required to add an electron!

[BritneyP- 2c]

Ionization energy is the energy it takes to remove and electron, while electronegativity is the attraction of the electron to the atom.

[RichBollini4G]

Ionization energy is the energy needed to remove electrons from atoms. Electronegativity is how much an atom attracts electrons.

very helpful