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20 Σεπ 2022 · Describe the general trend for electron affinity values moving from top to bottom in a group on the periodic table. Why is more energy released in the formation of a halide ion than with other elements?
31 Αυγ 2022 · Electron affinity (Eea) is the energy change when an electron is added to a neutral atom in the gas phase. In simple terms, it is a measure of a neutral atom’s ability to gain an electron. The gas phase atom is used (rather than liquid or solid) because the atom’s energy levels aren’t influenced by neighboring atoms.
The electron affinity is the potential energy change of the atom when an electron is added to a neutral gaseous atom to form a negative ion. So the more negative the electron affinity the more favourable the electron addition process is.
What is electron affinity. Learn its equation, examples, values, and change across a period & down a group in the periodic table. Also, learn its exceptions.
30 Ιουν 2023 · Major periodic trends include: electronegativity, ionization energy, electron affinity, atomic radius, melting point, and metallic character. Periodic trends, arising from the arrangement of the periodic table, provide chemists with an invaluable tool to quickly predict an element's properties.
Learn all about electron affinity, including it's definition, periodic table trends & charts, exceptions and influencial factors
Electron affinity is the energy change that results from adding an electron to a gaseous atom. For example, when a fluorine atom in the gaseous state gains an electron to form F⁻ (g), the associated energy change is -328 kJ/mol. Because this value is negative (energy is released), we say that the electron affinity of fluorine is favorable.
