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With the addition of an electron causing a negative charge, an ion is larger than normal but with loss of an atoms electron, the positive ion is smaller. 1 Answer. Cation: has lost an e-, therefore electrostatic repulsion b/w e- is decreased and the size of the ion shrinks.

In principle, the spacing between two adjacent oppositely charged ions (the length of the ionic bond between them) should equal the sum of their ionic radii. if the atom loses an electron, the ion is relatively smaller than the atom and it becomes positive.

Explain the relationship between the relative size of an ion to its neutral atom and the charge on the ions.? Protons are located in the nucleus. Amir Ahmed. On the other hand, when a potassium atom (K) loses an electron to form a potassium ion (K+), its size dramatically decreases since there are no longer occupants in the n=3 shell.

Lv 5. [5] Covalent radius : the nominal radius of the atoms of an element when covalently bound to other atoms, as deduced from the separation between the atomic nuclei in molecules.

Periodic Trends.. A little help please?

Explain the relationship between the relative size of an ion to its atom and the charge on the ion. That means, they get electrons from other atoms (besides the ones they already have) in order to get a valence shell similar to the ones noble gases have. The designations cation or anion come from the early experiments with electricity which found that positively charged particles were attracted to the negative pole of a battery, the cathode, while …

Relevance. Answer Save. Because you are adding electrons to a neutral atom, you are increasing the repulsive forces of electrons, and protons are not totally able to compensate that; so, ions of non metal atoms have larger sizes than neutral atoms. An ion is an atom that carries a charge because it has more or less electrons than its neutral form.
if the atom gains an electron, the ion is relatively bigger than the atom and it becomes negative. The number of protons or the atomic number of an atom, the + charges, cannot be changed.

Ionic radius, r ion, is the radius of an atom's ion in ionic crystals structure. For example, when an oxygen atom (O) gains electrons to become an oxide ion (O2-), its size dramatically increases due to additional electron-electron repulsion in the n=2 valence shell. What is the relationship between relative size of an ion and its neutral atom and the charge on the An ion is formed when either one or more electrons are removed from a neutral atom to form a positive ion (cation) or when additional electrons attach themselves to neutral atoms to form a negative one (anion).

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