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Sithlord586
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OK i know the first shell can hold upt to 2 electrons. What of the other shells? HOw many can the second , third , fourth and so on? And is there an easy way of remembering?
Sithlord586 said:thank u for responding. One more question. How do we know the number of neutrons in the nucleus? For example , LITHIUM has three protons. What of the neutrons?
Electron shells are the regions around an atom's nucleus where electrons are most likely to be found. They are also known as energy levels or orbitals.
The number of electron shells in an atom depends on the element. The first shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, and the third shell can hold up to 18 electrons.
Electron shells determine the chemical and physical properties of an element. They also play a role in the formation of chemical bonds and the reactivity of an atom.
Electrons are distributed in the electron shells according to the Aufbau principle, which states that electrons fill the lowest energy levels first before moving to higher energy levels.
Yes, electrons can move between electron shells by gaining or losing energy. This can happen through processes such as absorption or emission of light, or through chemical reactions.