Periodic Table of Elements
Phases of matter
Subatomic Particles
Numbers
Naming
Common chemicals
100
The atomic number of iron
26
100
In this state of matter, atoms or molecules cannot move freely but they vibrate in place.
Solid
100
This is the positively charged particle in an atom
proton
100
Number of protons
40
100
MgCl2
magnesium chloride
100
H2O
Water
200
The elemental symbol for potassium
K
200
This type of substance does not have its own shape and can be compressed.
Gas
200
This particle is not part of the nucleus of an atom
electron
200
Atomic number
42
200
SiO2
silicon dioxide
200
NaCl
salt/ table salt
300
What element is diamond made of?
Carbon
300
Turning a solid into a liquid is called
Melting/ Fusion
300
This particle is what is gained or lost to form ions
electron
300
Mass number
127
or 126.90
300
CuCl3
copper (iii) chloride
300
CH3COOH
vinegar (acetic acid)
400
These elements are highly reactive and contain 7 valence electrons
Halogens
400
Turning a liquid into a gas is called
Evaporation
400
These two subatomic particles contribute to the mass of an atom
protons and neutrons
400
Number of electrons (in a neutral atom)
53
400
Daily Double
What is the chemical formula for iron (iii) carbonate?
400
C12H22O11
sugar (sucrose)
500
This latin name for gold is where the chemical symbol for gold comes from
Aurum
500
When a solid sublimates, it becomes this state of matter.
gas
500
This type of elementary particle makes up protons and neutrons
quarks
500
Number of neutrons
10
500
K2Cr2O7
Potassium dichromate
500
NaHCO3
baking soda (sodium bicarbonate)