| A | B |
|---|
| metals | elements that tend to gain electrons |
| noble gases | Helium, Neon, and Argon are part of what family |
| metalloids | group of elements that shares characteristics with both metals and nonmetals |
| atomic number | information in the periodic table that indicates the number of protons in an atom |
| becomes postively charged | this happends when an atom loses electrons |
| gases | At room temperature, more than half of the nonmetals are _________ |
| electrons | particles with a negative charge that move around the nucleus |
| transition metals | group that contains the most elements |
| electrons | in an atom the number of prontons always equals the number of __________ |
| ionic bond | attraction between ions with opposite electrical charges results in the formation of what type of bond |
| noble gases | elements that do not usually form compounds because their outermost level is full |
| group 1, first column on left | where the most reactive metals are located in the periodic table |
| ion | charged atom |
| ionic | bonding that involves a transfer of electrons |
| ionization | process of removing electrons and forming charged atoms |
| ionization energy | energy needed for removing electrons and forming charged atoms |
| electron affinity | tendancy of an atom to attract electrons |
| crystal lattice | regular repeating arrangement of ions in an ionic compound |
| valence electrons | electrons in the outermost level of an atom |
| valence | all atoms in the same column have the same ______ |
| noble | family that has elements that are solid liquid and gas |
| period | horizontal row of elements |
| groups/families | columns of elements |
| properties | where an element is on the periodic table tells you about the _________ of that element |
| transition metals | types of elements found in groups 3-12 |
| cation | metal atom that has a charge |
| properties | elements in families have similar ____________ |
| non-metals | types of elements that tend to gain electrons |
| anions | negative ions |
| alkali | soft, shiny, and white are characteristics of which group in the periodic table |
| calcium and magnesium | two most common alkaline earth metals |
| shiny, hard, good conductors, 1 or 2 valence electrons | properties of transition metals |
