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The radius will decrease due to the positive charge of the nucleus drawing the electron cloud closer to itself

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Q: When an element forms a cation what happens to the radius and why?
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Is cesium a cation or anion?

Cesium is an element that forms a cation.


Is oxygen anion or cation?

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What is lithium cation or anion?

Lithium is cation, because it is positivelycharged. Whenever a single element is positive , like calcium, it will be cation.While oxygen, which is negatively charged, will be anion.


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