Periodic table
vertical columns
what are groups
postive charged
what are protons?
ion
what is a charged atom?
5 - 6
what is the number of marks a question is worth?
how phosphorus forms an ion
what is gains 3 electrons
Horizontal rows
what are periods?
center of the atom
what is the nucleus?
name for a postive ion
what is a cation?
lose electrons
what is what metals do to form bonds?
what group number tells you
what is number of electrons in outer shell?
group 18
what are nobel gases?
number of protons
what is the atomic number?
name for a negative ion
what is an anion?
metals and non-metals
what is the type of elements that form ionic bonds?
what period number tells you
what is number of electron shells?
group 3-12
what are transition metals?
Rule for electons in valence shell
what is 2n2?
always lose electrons
what is a metal?
to gain a full valance shell
electron configuration of calcium
what is 2, 8, 8, 2?
group 2
what are alkaline earth metals?
negligable mass
what is an electron?
always gain electrons
what is a non-metal?
what is transfer?
number of elements on the periodic table
what is 118?