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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.


What is the net electrical charge on a magnesium ion that is formed when a neutral magnesium atom loses two electron?

When a neutral magnesium atom loses two electrons, it becomes a magnesium ion (Mg²⁺). Since electrons carry a negative charge, losing two electrons results in a net positive charge of +2 on the magnesium ion. Therefore, the net electrical charge on a magnesium ion is +2.


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.


What change in electron structure occurs when magnesium atom becomes a magnesium ion?

When a magnesium atom becomes a magnesium ion, it loses two electrons from its outermost shell, resulting in a positively charged ion (Mg²⁺). This change in electron structure transforms the neutral magnesium atom, which has 12 electrons, into an ion with only 10 electrons. Consequently, the ion achieves a stable electron configuration similar to that of neon, with a full outer shell.


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.


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.