Two electrons will fill a hydrogen's outer, or valence, shell.
The noble gas configuration of hydrogen is 1s1, as it has one electron in its outer shell. Hydrogen can achieve stability by gaining or losing one electron to have a full valence shell like the noble gas helium.
No, Ni2+ does not have a noble gas configuration. A noble gas configuration is attained when an atom has a full valence shell of electrons, like the noble gases in Group 18 of the periodic table. Ni2+ has lost electrons to achieve a stable electron configuration but does not have a full valence shell like a noble gas.
Calcium loses two electrons to obtain a noble-gas electron configuration.
Aluminum has 13 electrons. To achieve a noble gas electron configuration like neon, aluminum needs to lose 3 electrons to have the same electron configuration as neon (10 electrons). This results in the formation of the Al3+ ion.
Silicon has 4 valence electrons. No noble gases will have 4 valence electrons.
Helium has two valence electrons. It is the only noble gas not to have eight valence electrons. Helium has the electronic configuration 1s2.The Noble gases have eight valence electrons in their outer shell.
The noble gas configuration of hydrogen is 1s1, as it has one electron in its outer shell. Hydrogen can achieve stability by gaining or losing one electron to have a full valence shell like the noble gas helium.
No, Ni2+ does not have a noble gas configuration. A noble gas configuration is attained when an atom has a full valence shell of electrons, like the noble gases in Group 18 of the periodic table. Ni2+ has lost electrons to achieve a stable electron configuration but does not have a full valence shell like a noble gas.
Calcium loses two electrons to obtain a noble-gas electron configuration.
Oxygen needs to gain 2 electrons to achieve a noble gas configuration, as it has 6 valence electrons and wants a full valence shell of 8 electrons, like a noble gas.
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Aluminum has 13 electrons. To achieve a noble gas electron configuration like neon, aluminum needs to lose 3 electrons to have the same electron configuration as neon (10 electrons). This results in the formation of the Al3+ ion.
Silicon has 4 valence electrons. No noble gases will have 4 valence electrons.
nitrogen has 5 valence electrons. It should gain 3 electrons to achieve a noble gas configuration.
A species (element, cation or anion) should have eight valence electrons to have a noble gas electronic configuration. However element upto atomic number 4 may have 2 valence electrons and attain the electronic configuration of helium noble gas.
Valence electrons are electrons in the outermost shell (or outermost energy level or outermost orbital) in an atom. Noble gases have 8 valence electrons. But helium (a noble gas) has only 2 valence electrons.
Noble gases have completely filled orbitals / energy levels. They generally have 8 valence electrons (helium has only 2 valence electrons) and have stable electronic configuration.