It is used to determine how electrons are distributed among atoms in molecules. Electronegatvity (the attraction of electrons to individual atoms) has the same trend as electron affinity.Electron affinity (how much an electron wants to accept an electron) Atoms closer to F want electrons (negative affinity value), while elements closer to Fr do not accept electrons (positive affinity value).Ionization energy jumps especially high when taking an electron from an element with a full shell. First ionization energy decreases as one goes from the top to the bottom, and also decreases when moving right to left (opposite of atomic radius).Atomic radius increases as one goes from the top to the bottom, and also increases when moving right to left, because effective nuclear charge decreases.Nonmetals tend to be more reactive as one goes up and to the right of the periodic table (called nonmetallic character).Metals tend to be more reactive as one goes down and to the left of the periodic table (called metallic character).Trends in the Periodic Table Periodic table placed here for quick reference The creation of a spectrum based on the kinetic electrons of an electron when energy is put into an atom and that electron is released. The creation of a spectrum based on mass by finding the mass to charge ratio. 03 ⋅ 5 and that would be the atomic mass). The atomic mass of an element is the average of the atomic weights of the isotopes of an element, weighted by the abundance of the element (if He-4 occurs 97% of the time and He-5 occurs 3% of the time, then you would do.
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