Chemistry 1- Periodic Table Flashcards
1
Q
increasing from left to right by
A
atomic number
2
Q
atomic number
A
= # of p+ and e-
3
Q
atomic mass
A
number of p+ and N
4
Q
Where are metals
A
left and under the stairs + Al
5
Q
Non -Metals
A
Right + above the stairs
6
Q
Metalloids
A
On the stairs
7
Q
organized
A
column = families= groupes= # valiance e-
rows= periods= # of energy levels
8
Q
Metals make up
A
around 80% of the ele
9
Q
metals are
A
- solid at RT except Hg
- individual atoms (NOT molecules)
- lose e- to become + ions
10
Q
Physical Properties of a metals
A
- Lustrous
-Hard
-Malleable(flattened/sheet)
-Ductile(“Stretched” into wire)
-High Melting Points
-Conducts HE
11
Q
NONMetals
A
- 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
12
Q
Physical Properties of Non metals
A
- Dull in appearance
-Friable (brittle)
-Usally have low melting points - Don’t conduct HE
13
Q
hydrogen
A
is clear + colourless, odourless, non-metallic, tasteless, extremely flammable
14
Q
CO2
A
C+C, non-flammable
15
Q
in an atom
A
p+=e- and p<=N
