Atoms
Protons and neutrons
What makes up the nucleus?
Mendeleev
Who organised our current Periodic Table?
Compound made up of non-metals
What is a covalent compound?
Pop test
How do you test for hydrogen gas?
H2O
What is the chemical formula for water?
2, 8, 8
How many electrons can fit inside each shell? (electron configuration)
The rows
What are periods in the periodic table?
Ionic bonding
What do you call a bond that occurs between a non-metal and a metal?
Why do we balance chemical equations?
The law of conservation of matter/mass - matter cannot be created or destroyed, only rearranged
Atoms
What makes up all matter?
Determined by the number of protons
What is the atomic number?
Alkali Earth Metals
What is the name of group 2?
Full valence shell
Why do atoms want to bond together?
How do precipitates form?
Table salt
What is the compound NaCl?
1/1800 amu
What is the mass of an electron in atomic mass units?
Charge of -1
What common ionic charge does Group 17 (the halogens) have?
4 electrons being shared
What is a double bond?
The speed of a reaction
What is the rate of reaction?
Change of state
What is an example of a physical reaction?
Characteristic colour of an element when excited
What is a flame test?
W
What is the symbol for Tungsten?
Dot diagram drawings to represent sharing of electrons
What is a Lewis Dot Diagram?
Nitrates
What compounds/solutions are always soluble?
Lowers activation energy
What does a catalyst do?