As you go from left to right across the periodic table what is the general trend that is observed for each of the following For electron affinity assume that it is defined as the change associated with the addition of an electron to a gas-phase atom. 1. Effective Nuclear Charge  blank 2. Atomic Radii  blank 3. Ionization Energy  blank 4. Electron Affinity  blank As you go down a column in the periodic table what is the general trend that is observed for each of the following.   5. Effective Nuclear Charge  blank 6. Atomic Radii  blank 7. Ionization Energy  blank 8. Electron Affinity

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.