Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chem 06 Periodicity
Terms associated with the periodic table and its trends.
| Question | Answer |
|---|---|
| when elements are arranged in order of increasing atomic number, physical/chemical properties repeat at regular intervals | periodic law |
| vertical column on periodic table containing elements with similar chemical properties (and # of valence electrons) | group/family |
| horizontal row on periodic table containing all elements with the same # of occupied energy levels | period/series |
| # of groups on the period table | 18 |
| # of periods on the periodic table | 7 |
| name of group 1 elements | alkali metals |
| name of group 2 elements | alkaline earth metals |
| collective name of elements in groups 3-12 on the periodic table | transition metals |
| how groups 13-16 on the periodic table are usually named | by the top element (ex: 15 = nitrogen family) |
| name of group 17 elements | halogens |
| meaning of word 'halogen' | salt former |
| name of group 18 elements | noble gases |
| person who made the first periodic table | Mendeleev |
| abbreviation for name of element | symbol |
| whole # in each periodic table block | atomic number |
| decimal (usually) number in each periodic table block | atomic mass |
| largest classification of elements (~75%) found on 'left' side of the periodic table | metals |
| classification of elements on right side of the periodic table | nonmetals |
| elements that are almost all solids that have luster (are shiny), are malleable and ductile, and are good conductors | metals |
| elements that are either gases or brittle solids that may be dull and poor conductors | nonmetals |
| smallest classification of elements located along the zig-zag line on the periodic table | metalloids |
| classification of an element that might be a brittle solid that is a good conductor | metalloid |
| element along the zig-zig line on the periodic table that is not a metalloid | aluminum (Al) |
| element on left side of the periodic table that is not a metal | hydrogen (H) |
| only element in 'tall' (group A) families whose group # does NOT tell its # of valence electrons | helium (He) |
| half the distance between adjacent nuclei in a solid (or between the nuclei of bonded atoms) | atomic radius |
| unit for measuring atomic radius | picometer (pm) |
| trend for atomic radius down a group | increases |
| trend for atomic radius across a period | decreases |
| energy required to remove the loosest electron from an atom | ionization energy |
| unit for measuring ionization energy | kilojoules per mole (kJ/mol) |
| trend for ionization energy down a group | decreases |
| trend for ionization energy across a period | increases |
| measure of the attraction of an atom for addition electrons | electron affinity |
| unit for measuring electron affinity | kilojoules per mole (kJ/mol) |
| trend for electron affinity down a group | decreases |
| trend for electron affinity across a period | increases (but drops for noble gases) |
| (unitless) relative measure of atom's attraction for shared electrons in a bond | electronegativity |
| range of values for the electronegativity scale | 0.0 - 4.0 |
| element with highest electronegativity | fluorine (F) |
| element with lowest electronegativity value | cesium (Cs) or francium (Fr) |
| normal overall charge of an atom | neutral |
| name for an atom that has an overall charge due to gaining or losing electrons | ion |
| name for a positively charged ion (atom that lost electrons) | cation ("ca+ion") |
| name for a negatively charged ion (atom that gained electrons) | anion ("a.n.ion") |
| elements that gain electrons and form - ions that are LARGER than the original atom | nonmetals (right side of PT) |
| classification of elements that tend to lose electrons | metals |
| classification of elements that tend to gain electrons | nonmetals (except H & noble gases) |
| how does the ionic radius of elements that gain electrons and form anions compare to the original atomic radius? | ionic radius is larger |
| how does the ionic radius of elements that lose electrons (left side of PT) and form cations compared to the original atomic radius? | ionic radius is smaller |
| how do you identify the room temperature state of an element on our classroom periodic table | symbol color (black=solid, red=gas, blue=liquid) |
Created by:
goakley