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The first electrons to be removed (1st ionization energy) are the ones that are farthest from the nucleus, and so are not held as tightly (further from the positive protons). As you move closer to the nucleus (2nd and 3rd ionization energies), it becomes harder (more energy) to remove them because they are held more tightly by the protons.
Rick Satterfield
Wiki User
∙ 6y agoThe first electrons to be removed (1st ionization energy) are the ones that are farthest from the nucleus, and so are not held as tightly (further from the positive protons). As you move closer to the nucleus (2nd and 3rd ionization energies), it becomes harder (more energy) to remove them because they are held more tightly by the protons.
Wiki User
∙ 11y agoIt is needed to give energy in order to produce ion. If the energy would be negative, that would mean that the elements would be changing into ions spontaneously.
Wiki User
∙ 9y agothe electrons are attracted to the nucleus by the charge on the protons to overcome the force holding the electron in an atom one would need to add energy
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Which elements on periodic table have the highest ionization energies?
Helium (He) has the highest ionization energy.
What is the energy needed for ionization called?
ionization energy
What is ionization energy of oxygen?
Oxygen's ionization energy is 15.9994
What elements have the highest and lowest ionization energy?
Helium has the highest first ionization energy and francium has the lowest first ionization energy.
The energy required to remove electrons from an atom is called?
Ionization energy
What energy is needed to remove an electron from its outer most shell?
This is called the ionization energy and an is different for each electron in the atom. Electrons in the outer shell (furthest from the nucleus) have the lowest ionization energy, electrons in the innermost shell (closest to the nucleus) have the highest ionization energy.
What is the energy needed to remove electrons from an atom called?
ionization potential energy. but remember the atom must be neutral .
Which elements on periodic table have the highest ionization energies?
Helium (He) has the highest ionization energy.
Is fire an ionization energy?
No fire is not an ionization energy
What is the energy needed for ionization called?
ionization energy
What are examples of ionization energy?
Tins ionization energy is 118.10
What is the ionization energy of mercury?
Mercury's ionization energy is 24.10
What is the ionization energy for Ar?
Argon's ionization energy is 39.948
What is sulfurs ionization energy?
Sulfer's ionization energy is 32.066
What has the largest ionization energy?
Helium has the highest ionization energy.
Does noen have ionization energy?
Neon's ionization energy is 20.1397
What is ionization energy of oxygen?
Oxygen's ionization energy is 15.9994
