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Na (Atomic number: 11; Electronic configuration: 1s2, 2s2, 2p6, 3s1).

Na has 11 electrons distributed in electron shells. This negative charge provided by electrons is countered by 11 protons present in nucleus of Na. The electron in 3s1 is losely held by the positively charged nucleus. When Na loses its outermost electron (3s1), there is an imbalance in the total number of positive charge (provided by protons) and negative charge (provided by electrons). With an increase in positive charge in the ion, the electron charge around the nucleus is drawn closer to it. As a result of this the atomic radius of the Na ion decreases and hence its radius is smaller than that of Na atom.

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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.


Is a positive ion smaller or larger than its parent atom?

A positive ion is smaller than its parent atom because it has less electrons than its parent atom. The reduced number of electrons are then pulled more tightly to the positive nucleus because the number of protons remains the same, and these now exceed the electrons in number.


Size of cation is smaller than its neutral atom?

Yes, the size of a cation is smaller than it's neutral atom. This is so because cations have a low number of shells and hence a high effective nuclear charge which causes them to be smaller in size then their neutral atoms.


Which diagram best represents the relationship between the diameter of a sodium atom and the diameter of a positive sodium ion?

A diagram showing the sodium atom as larger than the positive sodium ion would be representative since the positive ion has lost an electron, leading to a decrease in size due to the loss of electron-electron repulsion.


When an atom loses one or more electrons does the radius of the atom become smaller or larger than the radius of the atom?

When an atom loses electrons, it becomes smaller in size because there are fewer negatively charged electrons in the electron cloud to balance the positive charge of the protons in the nucleus. This results in a stronger attraction between the remaining electrons and the nucleus, causing the electron cloud to contract and the overall radius of the atom to decrease.

Related Questions

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.


Is a positive ion smaller or larger than its parent atom?

A positive ion is smaller than its parent atom because it has less electrons than its parent atom. The reduced number of electrons are then pulled more tightly to the positive nucleus because the number of protons remains the same, and these now exceed the electrons in number.


What is the element size of bromine?

Its atom size is bigger than Chlorine but smaller than Iodine


Does chlorine atom has a smaller radius than chlorine ion?

Yes, considerably so. In general, positive ions are smaller than their neutral atoms, and negative ions are larger than their neutral atoms.


Size of cation is smaller than its neutral atom?

Yes, the size of a cation is smaller than it's neutral atom. This is so because cations have a low number of shells and hence a high effective nuclear charge which causes them to be smaller in size then their neutral atoms.


Which diagram best represents the relationship between the diameter of a sodium atom and the diameter of a positive sodium ion?

A diagram showing the sodium atom as larger than the positive sodium ion would be representative since the positive ion has lost an electron, leading to a decrease in size due to the loss of electron-electron repulsion.


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The Universe was never smaller than an atom.


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It is NOT greater. It is smaller. This is because the Hydrogen ion has lost its electron from the atom and is thus smaller. The hydrogen ion is a proton.


How does the size of a negative ion compare to the size of the atom that form?

The size of a negative ion is larger than atom. This makes more negative than positive, allowing the negative electrons to go farther from the nucleus.


When an atom loses one or more electrons does the radius of the atom become smaller or larger than the radius of the atom?

When an atom loses electrons, it becomes smaller in size because there are fewer negatively charged electrons in the electron cloud to balance the positive charge of the protons in the nucleus. This results in a stronger attraction between the remaining electrons and the nucleus, causing the electron cloud to contract and the overall radius of the atom to decrease.


Why are sodium ions smaller than sodium atoms?

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How does the size of a negative ion compare to the size of the atom that formed it?

A cation is smaller than the neutral atom because one electron is removed from the original atom to form it. An anion is larger than the neutral atom because one electron is added to the original atom to form it.