atoms, elements and compounds lesson 2: getting sorted
TRANSCRIPT
Atoms, Elements and
compounds
Lesson 2: Getting Sorted
Get started...
1. What is an element?2. What is a molecule?3. What do these symbols stand for?
FeAuAgNa
Homework:
Research the history of the periodic table.
Who developed it? Was it always the same way as we know it today?
Due Wed 16th
November
Divide the pictures into 2 groups....
How did you
decide how to
group your
cards?
Learning Objectives
1. To know the Difference in metals and non-metals
2. To know how the periodic table is divided into metal and non- metals
Learning Outcomes1. To be able to
describe the properties of metals and non-metals
2. To be able to show on the periodic table where metals are and where non-metals are
Can you think of some of the properties of each one??
• Properties of metals
• Properties of non-metals
Arranging elements
antimony (Sb)
Is this element a or a ?
H
LiNaK
RbCsFr
Be
Sc TiMg
V Cr Mn Fe Co Ni Cu Zn Ga Ge Se BrCa KrY Zr Nb Mo Tc Ru Pd Ag Cd In Sn SbSr TeRh
Ba Hf Ta W Re Os Ir Au Hg Tl Pb Bi PoLa AtPtRa Rf Db Sg Bh Hs Mt ? ?Ac ?
Al PN O
S ClF Ne
Ar
RnI
Si
Xe
HeB C
AsFeFeMg SPMg SP
CuCu
metal non-metal
IISb
Hard to say!
Sb
Metal or non-metal?
iodine (I) iron (Fe)copper (Cu)phosphorus (P)sulfur (S)magnesium (Mg)
Metals and non-metals in the periodic table
The periodic table is a list of all the known elements which are arranged according to the similarities in their properties.
Non-metals are mostly on the right.
Metals are on the left and in the centre.
What type of elements are between metals and non-metals?
Xe
Types of elements in the periodic table
Metal, non-metal or metalloid?
H
LiNaK
RbCsFr
Be
Sc TiMg
V Cr Mn Fe Co Ni Cu Zn Ga Ge Se BrCa KrY Zr Nb Mo Tc Ru Pd Ag Cd In Sn SbSr TeRh
Ba Hf Ta W Re Os Ir Au Hg Tl Pb Bi PoLa AtPtRa Rf Db Sg Bh Hs Mt ? ?Ac ?
Al PN O
S ClF Ne
Ar
RnI
Si
Xe
HeB C
As
silicon (Si) metalloidfrancium (Fr) metalscandium (Sc) metalkrypton (Kr) non-metalcobalt (Co) metal
What aremetalloids?
Which side are the non-metals on?
Which side are the
metals on?
Metalloids sometimes behave like metals and
sometimes like non-metals.
Metals are on the left and in
the centre.
Non-metals are mostly
on the right.