Structure of PT Flashcards
group 1
Alkali Metals
group 2
Alkaline Metals
groups 3-12
Transition Metals
group 17
Halogens
group 18
Noble Gases
Staircase
Metalloids
right of staircase
non-metals
left of staircase
metals
metals characteristics
luster, conductive, malleable, ductile, solid
non-metals characteristics
brittle solid, gaseous, non-malleable, not ductile, not conductive
metalloids characteristics
luster, semi conductive, not malleable, not durable, not ductile
groups are
verticle rows
periods are
horizontal columns
valence electrons are
electrons in the outermost shell
1st shell has
2 electrons
2nd shell has
8 electrons
3rd shell has
8 electrons
4th shell has
18 electrons
5th shell has
32 electrons
ductile
to be able to be drawn into a thin wire
atomic mass
number of p+n
conductive
ability to conduct heat or electricity
malleable
ability to be pressed without breaking
atomic number
number of p
luster
a gentle glow or sheen
father of the periodic table
Dimitri Mendeleev
Alkali metals
*soft metals, high thermal and electrical conductivity, ductility and malleable, REACTS VIOLENTLY WITH H2O, NEVER found as FREE elements in nature.
Alkaline earth metals
never found uncombined in nature, highly reactive
Transition metals
good conductors of heat and electricity
Inner transition metals
also known as lanthanides and actinides
Halogens
some of the most reactive, non-metals, halogens= salt formers
Noble Gases
extremely un-reactive, inactive because their outermost energy levis is full, all are in the earths atmosphere
