Answer:
A spinning ball creates a "Centrifugal Force" because you give it the "energy" to spin. A ball that is not moving does not require any external energy to keep it still.
Explanation
Answer:
Explanation:
When metal and nonmetal ions form ionic bonds, their total electrical charges must balance each other exactly (as in, add up to zero). In order to write a correct formula, you must know the ion charges of all the atoms involved.
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Explanation:
The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons. Since the boundary is not a well-defined physical entity, there are various non-equivalent definitions of atomic radius. Three widely used definitions of atomic radius are: Van der Waals radius, ionic radius, and covalent radius.