click below
click below
Normal Size Small Size show me how
Periodic TrenDDS
Gr11chem study IE,EA,EN
Name | Definition |
---|---|
Ionization Energy | Energy it takes to remove an electron from an atom. Across L-R increasing because more protons means more pulling is needed as the shells get full. Down U-D decreasing because there are more shells that get in the way of the pull, so it is weaker. |
Electron Affinity | the change in energy when gaining an electron in gases. Across L-R energy when forced to gain an electron increases because the shells get full. Down U-D decreasing because the shells are in the way and decrease the pull of the atom. |
Electronegativity | An atom's ability to attract electrons to itself. the stronger subtracts the weaker one to get electronegativity. Little difference means same 2 gases(covalent). Big difference means 2 different M+NM (ionic). Higher than 1.7 is considered ionic |
Atomic Size | radius size of elements. Across L-R decreasing because more protons. Down U-D increasing because of more shells. |
Octet Rule | having the same electron configuration as a noble gas. |
Diatomic Elements | when 2 of the same element bonds together |
Ionic Compound | strong ionic bonds hold ions in lattice formation. extremely high melting point. solids |
Covalent Compound | polar molecules, strong intermolecular bonds, higher melting point than non-polar, water. non-polar molecules, weak intermolecular bonds, lower melting point than polar, gas |
Stock System | Iron(2) Oxide or Iron(3) oxide |
Alternative System | Copper - (1)Cuprous, (2)Cupric Mercury - (1)Mercurous, (2)Mercuric Lead - (1)Plumbous, (2)Plumbic the longer ending first. oUS hICcup |