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Mg2+ is larger
Now, as for the logic behind this problem...The first thing to do is recognize that Ca2+ (Calcium) has lost 2 of its electrons, therefore its valence electron structure is the same as Ar's (Argon).
Ar is in the same row as Mg. The trend for atomic radii is increasing to the left and down. Atomic radius increases to the left because the atoms to the right have more particles in the nucleus than their counterparts to the left; thus, the electrons are drawn closer to the nucleus, and the atomic radius is diminished.
What else can I help you with?
Which is larger a sodium atom or sodium ion with a plus 1 charge?
The sodium atom is much bigger than a sodium cation with a plus 1 charge, because the "lost" electron of the ion had a higher principal quantum number than any remaining electron in the ion and therefore was distributed through a larger volume of space than any of the remaining electrons.
When electron transfer results in an ion larger than the original atom?
When electron transfer results in an ion larger than the original atom, it is likely that an anion has formed. This occurs when an atom gains electrons and becomes negatively charged. The additional electrons increase the electron cloud size, making the ion larger than the original atom.
Why is the chloride ion larger than the chloride atom?
The chloride ion is larger than the chloride atom because when an atom gains an electron to become an ion, it experiences an increase in electron-electron repulsion which causes the electron cloud to expand. This expansion leads to the ion being larger in size compared to the neutral atom.
What is bigger a chlorine atom or a chlorine ion?
A chloride ion is slightly larger than a chlorine atom, because in an ion there is one more electron than proton, allowing the electron shells to expand slightly. In a chlorine atom, the number of electrons and protons is the same.
An oxygen ion is larger than the oxygen atom since?
an oxygen ion has gained electrons, increasing the electron-electron repulsion and making the electron cloud expand. This causes the ion to be larger than the neutral atom.
Which is larger a sodium atom or sodium ion with a plus 1 charge?
The sodium atom is much bigger than a sodium cation with a plus 1 charge, because the "lost" electron of the ion had a higher principal quantum number than any remaining electron in the ion and therefore was distributed through a larger volume of space than any of the remaining electrons.
When electron transfer results in an ion larger than the original atom?
When electron transfer results in an ion larger than the original atom, it is likely that an anion has formed. This occurs when an atom gains electrons and becomes negatively charged. The additional electrons increase the electron cloud size, making the ion larger than the original atom.
Why is the chloride ion larger than the chloride atom?
The chloride ion is larger than the chloride atom because when an atom gains an electron to become an ion, it experiences an increase in electron-electron repulsion which causes the electron cloud to expand. This expansion leads to the ion being larger in size compared to the neutral atom.
Is halide atom larger than the halide ion?
Yes
When an atom of chlorine forms an ionic bond with an atom of sodium does the atom of chlorine become an ion with a smaller or larger radius than the atom of chlorine?
The chlorine atom becomes an ion with a larger radius when it forms an ionic bond with sodium. This is because it gains an electron and becomes a negatively charged ion, causing the electron cloud to expand.
An oxygen ion is larger than the oxygen atom since?
an oxygen ion has gained electrons, increasing the electron-electron repulsion and making the electron cloud expand. This causes the ion to be larger than the neutral atom.
What is bigger a chlorine atom or a chlorine ion?
A chloride ion is slightly larger than a chlorine atom, because in an ion there is one more electron than proton, allowing the electron shells to expand slightly. In a chlorine atom, the number of electrons and protons is the same.
What one is larger a chlorine atom or a chloride ion?
A chloride ion is larger than a chlorine atom because it has gained an electron, leading to increased electron-electron repulsion and a larger ionic radius compared to the atomic radius of a chlorine atom.
Is a negative ion larger or smaller than its parent atom?
A negative ion is typically larger than its parent atom. When an atom gains an electron to become a negative ion, the added electron increases the electron-electron repulsions, causing the electron cloud to expand. This expansion results in a larger ionic radius compared to the neutral atom.
Why the radius of an atom larger than the radius a positive ion formed from it?
The positive ion lost an electron.
Is a ion larger or smaller than its parent atom?
A negative ion would be considered larger than its parent atom. This is because electrons have mass, which makes the ions gain mass to outgrow their parent atoms.
Is the size of a positive ion generally bigger or smaller than the size of the neutral form which it forms?
A positive ion is generally smaller in size than the neutral form from which it forms. This is because when an atom loses an electron to become a positive ion, the remaining electrons experience a stronger attraction to the nucleus, leading to a more compact arrangement.
