0
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.
What else can I help you with?
Is ionisation enthalpy of potassium higher than that of sodium?
The ionisation enthalpy of potassium is lower than that of sodium.
Why does Ca have a higher ionization energy than Ga?
because it lower than Ba as you go down ionization energy increases
How do energy differences between higher energy levels of an atom compare to lower energy levels?
They are smaller in magnitude than those between lower energy levels.
Is the ionization energy of alkali metals larger or smaller than the alkaline earth metals in the same period?
It is about first ionization energy. It is less than alkaline earth metals.
Why boron has a lower first-ionization energy than beryllium?
Because in Boron there is a complete 2s orbital and the increased shielding of the 2s orbital reduces the ionisation energy compared to that seen in Beryllium.
Is ionisation enthalpy of potassium higher than that of sodium?
The ionisation enthalpy of potassium is lower than that of sodium.
Why ionisation energy of boron is lower than beryllium?
The ionization energy of boron is lower than beryllium because removing an electron from boron involves taking it out of the 2p orbital, which is higher in energy than the 1s orbital of beryllium. This makes it easier to remove an electron from the 2p orbital of boron, resulting in a lower ionization energy.
Why does Ca have a higher ionization energy than Ga?
because it lower than Ba as you go down ionization energy increases
Why sulfur has a lower ionisation energy than phosphorus?
Sulfur has a lower ionization energy than phosphorus because sulfur's valence electrons are in a higher energy level, making them easier to remove. Additionally, sulfur's smaller atomic size compared to phosphorus results in stronger nuclear attraction, requiring less energy to remove an electron.
Does higher energy light have a higher frequency than lower energy light does?
yes
Why is the ionisation energy of boron less than that of beryllium?
The ionization energy of boron is lower than that of beryllium because in boron, the electron being removed is farther from the nucleus, experiencing less of the nuclear charge, making it easier to remove. Additionally, boron's electron configuration involves removing an electron from a higher energy level, which requires less energy compared to removing an electron from a lower energy level in beryllium.
How do energy differences between higher energy levels of an atom compare to lower energy levels?
They are smaller in magnitude than those between lower energy levels.
Is the ionization energy of alkali metals larger or smaller than the alkaline earth metals in the same period?
It is about first ionization energy. It is less than alkaline earth metals.
Why boron has a lower first-ionization energy than beryllium?
Because in Boron there is a complete 2s orbital and the increased shielding of the 2s orbital reduces the ionisation energy compared to that seen in Beryllium.
Do x-rays have a higher or lower energy than gamma rays?
Gamma rays have higher energy than X-rays. Gamma rays are a type of electromagnetic radiation with the highest energy in the electromagnetic spectrum, while X-rays have lower energy and fall between ultraviolet and gamma rays on the spectrum.
Why is boron has lower ionization energy than berylium?
Boron has a lower ionization energy than beryllium because boron has an extra electron in a higher energy level orbital, making it easier to remove. This higher energy level allows the electron to be further from the nucleus, experiencing less attraction, resulting in lower ionization energy.
In an endothermic reaction which has the lower energy?
In an endothermic reaction, the products have higher energy than the reactants. This means the reactants have lower energy compared to the products.
