- #1
relativitydude
- 70
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How come the valance electrons of MO is [KR]5s^1 4d^5 and not
[KR]5s^2 4d^4
[KR]5s^2 4d^4
Electronic configuration refers to the arrangement of electrons in an atom, molecule, or ion. It is important because it determines the chemical and physical properties of an element, as well as its reactivity and bonding behavior.
The electronic configuration of an atom can be determined by following the Aufbau principle, which states that electrons fill the lowest energy levels first, and then move to higher energy levels. The order of filling is based on the number of electrons an energy level can hold.
The periodic table is a visual representation of the electronic configuration of elements. It is organized based on the number of electrons in the outermost energy level, which determines an element's chemical behavior and properties.
Yes, an atom's electronic configuration can change through various processes, such as ionization, where an atom gains or loses electrons, or through chemical reactions, where electrons are shared or transferred between atoms.
The electronic configuration of an element determines its position on the periodic table. Elements in the same group have similar electronic configurations, which results in similar chemical properties. Elements in the same period have the same number of energy levels, but different electronic configurations, leading to different physical and chemical properties.