Ionization Energy When atoms are ionized theylose an electron and become positively charged. Ionization always requires energy. The amount of energy required to separate one electron from its atom (first ionization energy) depends on how tightly held the electron is.
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What is ionization energy?
Ionization energy, also called ionization potential, in chemistry and physics, the amount of energy required to remove an electron from an isolated atom or molecule.
How does the ionization energy affect the removal of electrons?
Normally, when the ionization energy is high it will be more difficult to remove an electron. There are also several factors that govern the attraction forces. If the nucleus is positively charged then the electrons are strongly attracted to it.
Why is the second ionization energy higher than the first?
The second ionization energy is that required to remove the next electron, and so on. The second ionization energy is always higher than the first ionization energy. Take, for example, an alkali metal atom. Removing the first electron is relatively easy because its loss gives the atom a stable electron shell.
What is ionic energy?
Ionization energy, also called ionization potential, in chemistry, the amount of energy required to remove an electron from an isolated atom or molecule.