Chemistry 1- Periodic Table Flashcards
increasing from left to right by
atomic number
atomic number
= # of p+ and e-
atomic mass
number of p+ and N
Where are metals
left and under the stairs + Al
Non -Metals
Right + above the stairs
Metalloids
On the stairs
organized
column = families= groupes= # valiance e-
rows= periods= # of energy levels
Metals make up
around 80% of the ele
metals are
- solid at RT except Hg
- individual atoms (NOT molecules)
- lose e- to become + ions
Physical Properties of a metals
- Lustrous
-Hard
-Malleable(flattened/sheet)
-Ductile(“Stretched” into wire)
-High Melting Points
-Conducts HE
NONMetals
- can be liquids, gases or solids
- Can exist as molecules or individual atoms
EX: PS I Have No Bright Or Clever Friends= molecule ele - gain e- to become - ions
Physical Properties of Non metals
- Dull in appearance
-Friable (brittle)
-Usally have low melting points - Don’t conduct HE
hydrogen
is clear + colourless, odourless, non-metallic, tasteless, extremely flammable
CO2
C+C, non-flammable
in an atom
p+=e- and p<=N
Ions
- atoms that have lost or gained e-
- (-) do not = (+)
Bohr Diagram
1) find p+ and n end e-
2) draw EL
3) move vailance e-
Lewis dot diagram
1) place vailance e- around atom in NESW
2) draw lines to were they go