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na is more electropositive. it is so as electropositivity decreases from left to right across a group

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Does the addition of two electrons or removal of one electron require more energy for an oxygen atom?

when adding two electrons to the oxygen atom yep! it requires more energy because it has to take them from another atom so it will be removing an electron using more ionization energy to do the work.and we must remember that oxygen needs two electrons to attain its valency then it needs to take two from another atom to be fully filled and without the two electrons it will still lack electron to be stable.this means adding or removing requires energy.


Are electrons located in energy levels or electron cloud?

Electrons are located in energy levels within the electron cloud.


Why is the 2nd ionisation energy of Cr higher and not lower than of Mn?

The electron configuration of a neutral chromium atom is [Ar]3d54s1. The electron configuration for manganese is [Ar]3d54s2. The first electron removed from a chromium atom is the single 4s electron, leaving the electron configuration [Ar]3d5. The first electron removed from a magnesium atom is one of the 4s2 electrons, leaving the electron configuration [Ar]3d54s1. Removal of a second electron from a chromium atom involves the removal of one of the 3d electrons, leaving a configuration of [Ar]3d4, which is not a very stable configuration, and requires more energy to achieve. Removal of a second electron from a magnesium atom involves the removal of the second 4s electron, leaving a configuration of [Ar]3d5, which is more stable and requires less energy to achieve.


Why is there a large jump between the fourth and fifth ionization energies of silicon?

The large jump between the fourth and fifth ionization energies of silicon occurs because, after the removal of the fourth electron, the remaining electrons are much more tightly held by the nucleus due to a significant decrease in electron shielding. This transition typically signifies the removal of an electron from a new, more stable electron shell or subshell, resulting in a higher energy requirement to remove the next electron. In silicon, the first four electrons can be removed relatively easily from the valence shell, but the fifth electron requires significantly more energy to remove from a more stable, inner shell configuration.


Why formation of do negative ion is an endothermic process?

endo process because it involves breaking of bonds ( requires energy thus energy from surroundings are absorbed)

Related Questions

Which atom requires the least energy for the removal of the most loosely bound electron a.Sn b.Sr c.Be d.Br?

c. Be (beryllium) requires the least energy for the removal of the most loosely bound electron because it has the fewest number of electrons in its outer shell, making it easier to remove the electron.


Why the addition of two electrons or removal of one electron requires more energy in oxygen atom?

Type your answer here... when adding an electrons to oxygen it needs more energy in electron affinity in order to attract electrons from other atoms to be stable.and we know that oxygen is in short of two electrons.so in the other hand when an electron is removed from oxygen it will be unstable and will be needing more ionization energy to be able to remove an electron to it.Thus mean indeed when adding or removing electrons for oxygen it requires energy.


Does the addition of two electrons or removal of one electron require more energy for an oxygen atom?

when adding two electrons to the oxygen atom yep! it requires more energy because it has to take them from another atom so it will be removing an electron using more ionization energy to do the work.and we must remember that oxygen needs two electrons to attain its valency then it needs to take two from another atom to be fully filled and without the two electrons it will still lack electron to be stable.this means adding or removing requires energy.


If electrons have the most energy in an atom electrons in an electron cloud electrons in the outermost electron shell electrons in the innermost electron shell electrons in the nucleus?

Electrons in the outermost electron shell have the most energy in an atom. The energy of an electron increases as it moves further away from the nucleus. Electrons in the innermost shell have the least energy, while electrons in the nucleus have the highest energy due to their proximity to the protons.


Which type of energy requires the movement of electrons?

Electric energy requires the movement of electrons.


Are electrons located in energy levels or electron cloud?

Electrons are located in energy levels within the electron cloud.


Why does each successive ionization of an electron requires a greater amount of energy?

It is because when you remove an electron during first ionization process the force of attraction between nucleus and valence electrons increases (since there will be more protons than electrons). In the second ionization it is harder to remove an electron, thus more energy is needed.


Why is the 2nd ionisation energy of Cr higher and not lower than of Mn?

The electron configuration of a neutral chromium atom is [Ar]3d54s1. The electron configuration for manganese is [Ar]3d54s2. The first electron removed from a chromium atom is the single 4s electron, leaving the electron configuration [Ar]3d5. The first electron removed from a magnesium atom is one of the 4s2 electrons, leaving the electron configuration [Ar]3d54s1. Removal of a second electron from a chromium atom involves the removal of one of the 3d electrons, leaving a configuration of [Ar]3d4, which is not a very stable configuration, and requires more energy to achieve. Removal of a second electron from a magnesium atom involves the removal of the second 4s electron, leaving a configuration of [Ar]3d5, which is more stable and requires less energy to achieve.


Which explains the change in ionization energy that occurs between removing the first and second electrons from an atom?

The ionization energy increases when removing the second electron because the remaining electrons experience a higher effective nuclear charge due to the removal of the first electron. This makes it harder to remove a second electron compared to the first one.


Why formation of do negative ion is an endothermic process?

endo process because it involves breaking of bonds ( requires energy thus energy from surroundings are absorbed)


What does the ionization energy tell you about an element?

Ionization energy is the energy required to remove an electron from an atom. It can provide information about an element's reactivity and ability to form ions. Lower ionization energy indicates easier removal of electrons and greater reactivity, while higher ionization energy means more energy is needed to remove electrons, indicating lower reactivity.


Why is there such a large jump in ionization enery between the second and third ionization energies for magnesium?

The second ionization involves the removal of an electron from the outer S orbital to give a stable noble gas-like electron configuration. However, the third ionization removes an electron from the inner shell, which is much less energetically favorable.