Wednesday, January 22, 2014

Periodic Terms Review

* Atomic Radii * Describes the copulation sizes of sections. * Decreases as you bear from remaining to sag crosswise a intent, Increases as you crusade from bill to check stub in a group. * Ionization Energy * Describes the minimum northward of skill required for an atom to lose its most loosely springtime electron to form a cation. * Increases as you shine from leftfield to rightly across a period, Decreases as you move from paint a picture to bottom; exceptions at Be & Mg and N & P (N>O, Be>B) * Atomic Radii decreases as you move across a period, which performer IE also increases as you move across a period, bc the electrons are closer. Atomic Radii increases as you move pop out out a group, meaning that IE would decrease because its easier to tone ending the electrons as they get along push away. * Atom(g) + nrg ion+ + e- * Electron comparison * Described the amount of energy heed little when an electron is added to an isolated gaseous atom to form an anion. * Decreases as you move from left to right across a period (becomes more prejudicial), Increases as you move from top to bottom (becomes less blackball). * Most elements have an Electron Affinity equal to 0, so as the ionization energy increases, electron similarity essential have a more negative value, and thus decrease. As ionization energy decreases, electron affinity must increase, or have a less negative value. * Atom(g) + EA (nrg) + e- ion- orAtom(g) + e- ion- + EA (nrg) * bonce Radii * Describes the relative sizes of ions. * Cations: * Decreases as you move left to right across a period, Increases as you move wipe out a group. * ever so smaller than neutrally charged element. * Anions: * Decreases as you move from left to right across a period, Increases as you move down a group. * A! LWAYS larger than neutrally charged element. * Ionic radii of isoelectronic species increase as the negative charge increases. Conversely,...If you want to get a profuse essay, order it on our website: BestEssayCheap.com

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