Elements
The symbol for Caesium.
What is Cs?
Elements are chemically combined.
What is a compound?
Elements are not joined together, but mixed with each other.
Two reactants chemically joined to make a new compound.
What is synthesis?
The group Alkali Metals is found
What is Group 1?
A non-reactive gas
What is He, Ne, Ar, Kr, Xe or Rn?
The compound CO2
What is Carbon dioxide?
Air is composed of oxygen, carbon dioxide, nitrogen and traces of element gases.
What is an example of a mixture?
The opposite of synthesis.
What is decomposition?
Where is Sulphur?
An element with an atomic # of 8
What is oxygen?
Three or more different elements, and one of them is oxygen
What is a compound that ends in "ate"?
A salad.
What is a heterogeneous mixture?
Oxygen reacting with elements, forming an oxide when heat is applied.
What is Combustion?
The element groups that could not fit on the main periodic table.
What is Lanthanides and Actinides?
The most reactive non-metal.
What is Florine?
The ability to share electrons.
What is Valence Electrons?
Salt Water
What is a homogeneous mixture?
When an electron is loss and gain.
What is reduction and oxidation?
Very reactive as you go down the period.
What is Alkali Metals?
A chemist discovered Na, K, Ca, B, Mg and Barium
Who is Sir. Humphry Dave?
CuCO3
What is Copper Carbonate?
One mixture can be separated by physical means and the other cannot.
What is the difference between heterogeneous and homogeneous mixtures?
AgSO4 + NaCl2 -> AgCl2 +NaSO4
He discovered the neutrons on the nucleus.
Who is James Chadwick?