A Cl⁻ anion has gained one electron compared to a neutral chlorine atom. A neutral chlorine atom has 7 valence electrons, with the electron configuration of [Ne] 3s² 3p⁵. Therefore, in the Cl⁻ anion, there are 6 electrons in the 3p subshell, as it now has a total of 8 valence electrons (3s² 3p⁶).
calcium is normally [Ar] 4s2 if it is a 2+ ion, then it has lost 2 electrons so the configuration is just [Ar]
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the Lewis dot diagram for neon is as follows. .: Ne :. .
Neon (Ne) has 10 electrons in total. Therefore, Ne3s1 would have 11 electrons, as it refers to the third sublevel of the electron configuration for neon, which indicates one electron in the 3s orbital.
Ne2+ has a total of 8 electrons. Each Ne atom contributes 5 electrons (Ne's atomic number is 10), and the +2 charge on the ion means it has lost 2 electrons. So, 2 Ne atoms together as Ne2+ would have a total of 8 electrons.
q = Ne N = q/e Where: q = charge that can move N = number of electrons gained or lost e = elementary charge (1.602x10^-19)
How many protons, electrons, and neutrons does Ne have? *
A Cl⁻ anion has gained one electron compared to a neutral chlorine atom. A neutral chlorine atom has 7 valence electrons, with the electron configuration of [Ne] 3s² 3p⁵. Therefore, in the Cl⁻ anion, there are 6 electrons in the 3p subshell, as it now has a total of 8 valence electrons (3s² 3p⁶).
calcium is normally [Ar] 4s2 if it is a 2+ ion, then it has lost 2 electrons so the configuration is just [Ar]
Neon (Ne) has 10 core electrons. Core electrons are the electrons in an atom that are not involved in chemical reactions. For neon, the core electrons are the 1s²2s²2p⁶ electrons, which total 10.
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The electron configuration of argon is [Ne] 3s2 3p6, where [Ne] represents the electron configuration of neon. Argon has 18 electrons, with 2 electrons in the 3s orbital and 6 electrons in the 3p orbital.
There is no ion with the same number of electrons (= 11). Mg+ and Ne- do NOT exsist in normal chemistry. However Na+ and Mg2+ and Ne all have (equally) 10 electrons.
Neon, (Ne)
Mg2+ has 10 electrons. Neon also has 10 electrons. This means Mg2+ and Ne are isoelectronic (Mg doesn't migrate to Ne, the terminology is isoelectronic meaning having the same number of electrons)