Explanation:
no polyatomic ions have no fixed charges
In Newton's 2nd law, written in terms of force, mass and acceleration, m stands for the mass in the original Newton's work, i.e. the quantity of the substance which makes up a material body.
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The atomic number of zinc is 30 therefore The electronic configuration of zinc is expressed as 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 or in simpler form expressed as [Ar] 3d^10 4s^2. The electronic configuration shows the distribution of the electrons of an atom or a molecule.