review package Flashcards
Akali metals
group 1
very reactive
Alkaline earth metals
group 2
very reactive, but not as reactive as alkali metals
transition metals
3-12
conductors of heat & electricity
halogens
group 17
most reactive non metals
noble gases
group 18
colorless gases; extremely stable
(not reactive), do not form compounds
other non metals
various ( above/below the staircase )
various properties most of these makeup organic molecules
Hydrogen
N/A but sorta under group 1
colorless, odorless, gas, makes up both organic and inorganic matter, various chemical properties
metalloids
Various (typically the STAIRCASE)
have both metal and non-metal properties; may be classified differently; commonly include B, Si, Ge, As, Sb, Te
what are the periods?
horizontal lines in a periodic table
<———->
what are the groups?
vertical lines in a periodic table
Where are nonmetals located?
everything on the RIGHT of the staircase
where are metals located?
everything on the LEFT of the staircase
where are the metalloids located?
in the staircase
where is the electron located inside the atom?
outside the nucleus
where is a proton located in an atom?
inside the nucleus
