C. Be. Beryllium.
Adding electrons to an oxygen atom requires more energy because its electron shells are already filled and adding more electrons would create repulsion due to increased electron-electron interactions. Removing an electron requires more energy because oxygen has a strong attraction to electrons due to its high electronegativity, making it difficult to remove an electron.
The energy required to remove an electron from a neutral atom is the atom's ionization energy. It represents the amount of energy needed to remove the most loosely bound electron from an atom in its gaseous state.
The ionization energy of nitrogen is 14.5 eV (electron volts) for the removal of one electron.
why Cs requires little energy to release its 1 electron
This is false. The ionization energy is the amount of energy that is required to remove the electron. Therefore, if it requires more energy, it is harder to remove the electron.
Adding electrons to an oxygen atom requires more energy because its electron shells are already filled and adding more electrons would create repulsion due to increased electron-electron interactions. Removing an electron requires more energy because oxygen has a strong attraction to electrons due to its high electronegativity, making it difficult to remove an electron.
Cooling and freezing.
No. It takes energy to boil a substance.
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.
why Cs requires little energy to release its 1 electron
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.
na is more electropositive. it is so as electropositivity decreases from left to right across a group
endo process because it involves breaking of bonds ( requires energy thus energy from surroundings are absorbed)
Beryllium has a much larger second ionization energy than the first because after losing its first electron, the remaining electron is held more tightly due to increased electrostatic attraction from the positively charged nucleus. This results in a higher energy requirement to remove the second electron.
This is false. The ionization energy is the amount of energy that is required to remove the electron. Therefore, if it requires more energy, it is harder to remove the electron.
Yes, that's correct.
It depends on which energy level the electron is in, and where it ends up. To go from n=1 to n=2, it requires 10.2 eV of energy.