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Moving down a group means that the shielding of the outer electrons is increased due to the greater number of inner electron shells within the atom - these are between the nucleus and the outer electrons....
State Coulomb's law:F=(1/4πE0 )(qQ/d2)Since the distance separating the charges is twice the radius of the orbit relabel d to 2r and the charges are equal and opposite:F= -(1/16π...
Covalent molecules come in all shapes and sizes, depending on pairs of electrons in the outer shell, which repel each other due to their negative charge....
Constriction of blood vessels Dilation of pupils Slows down digestion
Central executivePhonological loopVisuo-spatial sketch pad Episodic buffer
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