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Magnesium is element #12; the most common isotope is magnesium 24, which has 12 protons and 12 neutrons.

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Which atom is isoelectronic with sodium ion?

Neon is isoelectronic with the sodium ion.


Does a Mg2 plus ion have two more protons than an atom of Mg?

Absolutely not. Magnesium is magnesium, whether it's an ion or not. So it must have 12 protons. The number of electrons, however, is different. Neutral (non-ionic) magnesium has 12 electrons; the magnesium ion (Mg+2) has 10 electrons, which means it is isoelectronic with neon.


What is the charge on an atom of magnesium?

The neutral atom of magnesium has no electrical charge; the ion is bivalent.


Are sodium ion(Na )magnesium ion(Mg2 )aluminium ion(Al3 )neon(Ne)nitrogen ion(N3-) all isoelectronic species?

Yes, sodium ion (Na+), magnesium ion (Mg2+), and aluminum ion (Al3+) are isoelectronic species because they all have 10 electrons. Neon (Ne) is isoelectronic with the other ions as well, having 10 electrons. However, nitrogen ion (N3-) is not isoelectronic with the rest, as it has 10 electrons while the others have 11.


Which noble gas is isoelectronic with the oxide ion O2?

The noble gas that is isoelectronic with the oxide ion O2 is neon (Ne). Both the oxide ion O2 and the neon atom have 10 electrons.


Is Cl isoelectronic with a noble gas?

Not a neutral Cl atom but the chloride ion Cl- is isoelectronic with the noble gas argon.


Is magnesium an ion or an atom?

Magnesium is an atom; but this atom can be transformed in an electrically charged atom - called cation, Mg2+.


What noble gas is isoelectronic with N?

The noble gas neon (Ne), is isoelectronic with N3- ion (not N atom)


Lewis symbol for magnesium ion?

The Lewis symbol for a magnesium ion (Mg^2+) would consist of the symbol "Mg" with a 2+ charge shown as two dots next to the symbol to represent the loss of two electrons from the neutral magnesium atom.


Is hydrogen a neutral atom or ion?

Hydrogen atom is neutral.


What is the first electron affinity of magnesium and is it exothermic or endothermic?

The first electron affinity of magnesium is exothermic. This means that energy is released when a neutral magnesium atom gains an electron to form a magnesium ion.


Is an atom with 12 protons 12 electrons and 12 neutrons an ion?

No, an atom with 12 protons, 12 electrons, and 12 neutrons is not an ion. It is a neutral atom of magnesium, as the number of protons (which determines the element) equals the number of electrons. Ions are charged atoms or molecules that have gained or lost electrons.