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No - but it has the same as a F- ion
Beryllium (Be) has a valence of +2. The ion could be written as (Be^2) or (Be+2) …
Neon is isoelectronic with the sodium ion.
There are four electrons in a Beryllium atom. Hence the mono positive ion has only three electrons. Therefore the electron configuration is 1s2 2s1.
Beryllium has divalent cations Be2+.
what does an atom have in common with an ion?
what does an atom have in common with an ion?
The beryllium ion Be2+ has the electronic configuration 1s2, a full valence shell, the same as helium, an inert gas. Neon is an inert gas, with an electronic configuration of 1s2 2s2 2p6.Be2+ and Ne therefore both have inert gas configurations and have full valence shells.
Their electron configuration =)
The Fluoride ion, neon atom, and sodium ion all have the same electron configuration and known as ISO-ELECTRONIC ions.
No - but it has the same as a F- ion
Beryllium (Be) has a valence of +2. The ion could be written as (Be^2) or (Be+2) …
Beryllium lose electrons (2).
Neon is isoelectronic with the sodium ion.
While a sodium ion and neon atom both have 10 electrons they are of different elements as a neon atom has 10 protons while sodium has 11. As a result the neon atom is neutral while the sodium ion carries a positive charge. So neon can exist on its own as a gas while sodium ion needs a negative ion to balance its charge and form an ionic solid.
Both fluoride ion and sodium ion are isoelectronic with neon. That means all have 10 electrons.
The Beryllium atom , like all atoms has zero(0) charge. However, it is a Group (II) Alkaline Earth Metal and will form the cation Be^2+ . This has a charge of '+2'.