Neon (Ne, atom number 10, noble gas in period 2) has the same electron configuration as O2- ion;
Oxygen as in noble gas configuration has taken up 2 electrons.
O : 1s2, 2s2, 2p4
O2-:1s2, 2s2, 2p6
Ne :1s2, 2s2, 2p6
No. The noble gasses are inert. Oxygen is a member of chalcogen or group 16 family has 6 valence electrons and is chemically highly reactive.
A quick look at a Periodic Table will reveal that neon is only a couple of columns away from oxygen.
neon and oxide ion has 10 electrons.
neon
helium
Not a neutral Cl atom but the chloride ion Cl- is isoelectronic with the noble gas argon.
argon and S2- are isoelectronic
None. However, the noble gas helium is isoelectronic with Li+ ion (and not with Li element)
oxide ion is isoelectronic with neon.
Argon is isoelectronic with the sulfide ion.
The noble gas neon (Ne), is isoelectronic with N3- ion (not N atom)
Not a neutral Cl atom but the chloride ion Cl- is isoelectronic with the noble gas argon.
argon and S2- are isoelectronic
None. However, the noble gas helium is isoelectronic with Li+ ion (and not with Li element)
oxide ion is isoelectronic with neon.
Argon is isoelectronic with the sulfide ion.
None. The Se2- ion is isoelectronic with Krypton.
No noble gas is isoelectronic with the element chlorine. But argon is isoelectronic with the chloride ion.
Neon, Ne.
Oxide ion O2- is isoelectronic with neon.
S2- ion is isoelectronic with argon (with 18 electrons).
Magnesium element has no relation with noble gas. But Mg2+ ions and noble gas neon are isoelectronic.