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P3- ion or phosphide ion as the same electron configuration as the noble gas, argon
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All halogens have 7 valence electrons. They gain one electron and achieve noble gas electronic configuration
There is no noble gas configuration for hydrogen.
Krypton is a noble gas and already has noble gas configuration.
P3-
[Ne] 3s2 3p3
K+
Ca2+
P 3- is the ion with the noble gas configuration.
P3- ion or phosphide ion as the same electron configuration as the noble gas, argon
Potassium loses one electron to form K+ ion that has the noble gas configuration of the element neon.
Sulfur atoms will gain two electrons in order to achieve a noble gas electron configuration. A sulfide ion has the formula S2-.
P3- or phosphide ion is formed. it has the same number of electrons as the noble gas, argon
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All halogens have 7 valence electrons. They gain one electron and achieve noble gas electronic configuration
P-3 ion is formed with 18 electrons.