Elements, Compounds, Molecules
What is O
Element
What does flammable mean.
The ability to catch on fire
Li
Lithium
What is a period
rows
Can atoms vanish out of thin air
No
What is C02
Compound and Mixture
What does Shiny mean
The ability to reflect light and look bright
Si
Sillicon
What is a group
A column
Do atoms rearrange into new substance
Yes
What is H2O
Compound and Mixture
What is a melting point
The point that something melts.
Ti
Titanium
What are Valence Electrons
Elements in a single group share an identical number of outermost (valence) electrons
What is the law
Mass is neither created nor destroyed in a chemical reaction
What is S8
Molecules
What does brittle mean
Easily broken or snapped.
Na
Sodium
What is an electron shell.
All elements in the same row share the exact same number of electron shells.
Who formulated this law
Antoine Lavoisier
What is C2H4
Compound and Molecule
what does malleable mean
It means the ability to be formed into a new shape
K
Potassium
What is the periodic law
When elements are arranged in order of increasing atomic number
What year was it formulated
1789