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Di-Negative atoms are already electron rich in nature. This causes electron affinity is less. Since energy is needed to introduce another electron into the atom the process is endothermic.
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∙ 8y ago
When an electron is added to a dinegative ion, it is already in a very stabilized state due to the presence of two extra electrons. Adding another electron would result in electron-electron repulsions and destabilize the system, requiring energy input. This leads to an endothermic process for adding an electron to a dinegative ion.
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What is the first electron affinity of magnesium and is it exothermic or endothermic?
The first electron affinity of magnesium is exothermic. This means that energy is released when a neutral magnesium atom gains an electron to form a magnesium ion.
Which has the lower electron affinity germanium or selenium?
Selenium has a lower electron affinity than germanium. Electron affinity is the energy released when an atom gains an electron to form a negative ion. In general, electron affinity tends to decrease as you move down a group in the periodic table, which is why selenium has a lower electron affinity than germanium.
What is the difference between electron affinity and electron gain enthalpy?
Electron affinity is the energy released when an atom gains an electron to form a negative ion, while electron gain enthalpy is the enthalpy change accompanying the addition of an electron to a gaseous atom. Electron affinity is a specific term used in the context of forming an ion, while electron gain enthalpy is a general term for the enthalpy change associated with gaining an electron.
What is the highest electron affinity?
The element with the highest electron affinity is chlorine. Chlorine has a high tendency to gain an additional electron to form a stable ion with a full outer shell.
Is an element with a large negative electron affinity most likely to form a positive ion a negative ion or a neutral atom?
An element with a large negative electron affinity is more likely to form a negative ion because it strongly attracts electrons to achieve a stable electron configuration. This results in the formation of negatively charged ions.
What is the first electron affinity of magnesium and is it exothermic or endothermic?
The first electron affinity of magnesium is exothermic. This means that energy is released when a neutral magnesium atom gains an electron to form a magnesium ion.
Which has the lower electron affinity germanium or selenium?
Selenium has a lower electron affinity than germanium. Electron affinity is the energy released when an atom gains an electron to form a negative ion. In general, electron affinity tends to decrease as you move down a group in the periodic table, which is why selenium has a lower electron affinity than germanium.
What is the difference between electron affinity and electron gain enthalpy?
Electron affinity is the energy released when an atom gains an electron to form a negative ion, while electron gain enthalpy is the enthalpy change accompanying the addition of an electron to a gaseous atom. Electron affinity is a specific term used in the context of forming an ion, while electron gain enthalpy is a general term for the enthalpy change associated with gaining an electron.
Does electron affinity gain electrons?
Yes, electron affinity is the energy released when an atom gains an electron to form a negative ion. It describes the tendency of an atom to accept an electron.
What is the highest electron affinity?
The element with the highest electron affinity is chlorine. Chlorine has a high tendency to gain an additional electron to form a stable ion with a full outer shell.
Definition of electron affinity?
Electron affinity is the energy released when an electron is added to a neutral atom to form a negative ion. It measures an atom's attraction for electrons. A higher electron affinity indicates a stronger tendency for an atom to gain an electron.
Is an element with a large negative electron affinity most likely to form a positive ion a negative ion or a neutral atom?
An element with a large negative electron affinity is more likely to form a negative ion because it strongly attracts electrons to achieve a stable electron configuration. This results in the formation of negatively charged ions.
What is the energy needed to remove an electron from a negative ion to form a neutral atom or molecule?
The energy needed to remove an electron from a negative ion to form a neutral atom or molecule is called the electron affinity. It represents the energy change when an electron is added to a neutral atom or molecule to form a negative ion. The higher the electron affinity, the greater the energy needed to remove an electron.
What is the electron affinity for phosphorus?
The electron affinity for phosphorus is -72 kJ/mol. This value represents the energy released when an electron is added to a neutral phosphorus atom to form a negatively charged ion.
What is the electron affinity of francium?
Francium has the lowest electron affinity among all the elements because it is highly reactive and readily loses an electron to form a positive ion. This means that francium has a very low tendency to gain an electron.
Which has the more negative electron affinity br or br?
Bromine (Br) has a more negative electron affinity than boron (B). This means that bromine has a higher tendency to accept an electron to form a negative ion.
What is the electron affinity of yttrium?
The electron affinity of yttrium is 29.6 kilojoules per mole. This is how much energy this element releases when added to a single neutral, gaseous molecule or atom to create a negative ion.
