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chemistry 11 module
glossary
| Term | Definition |
|---|---|
| period | horizontal rows in the periodic table of elements |
| group | vertical columns in the periodic table of elements |
| main group elements | p and s blocks |
| transition metals | d block elements |
| alkali metals | the first group of elements |
| alkali earth metals | the second group of elements |
| halogens | elements of group 17 |
| noble gases | elements of group 18 with full valence shells |
| lanthanides | 4f subshell |
| actinides | 5f subshells |
| representative elements | the first main row |
| metals | shiny, good conductors, mailable, and solid |
| non-metals | not shiny, not solid at room temperature, brittle in solid form, bad conductors |
| metalloids | behave in-between metals and non-metals |
| electrostatic forces | forces between two charged particles |
| ionization energy | the energy needed to remove a electron from a neutral atom |
| chemical bonding | the create of long lasting attractions between atoms and ions |
| electronegativity | a measure of how attractive atoms are to electrons when in a bond with another atom |
| combining capacity – (also known as “valence”) – | the amount of bonds a atom can make to have a full valence shell |
| nonpolar covalent bond | a bond with a equal sharing of electrons, less then 0.4 electronegativity |
| polar covalent bond | a bond with an unequal sharing of electrons, between 0.4 and 1.7 electronegativity |
| ionic bond | a bond in which all electrons have gone into one atom creating a cation and an anion attracted by electrostatic forces, more than 1.7 electronegativity |
Created by:
squiddyman
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