Particle Theory and Classifications of Matter
The smallest particles that still have unique properties and cannot be split any smaller has been given this name.
What is an atom?
Aluminum is pounded into thin sheets to make aluminum foil you use in cooking. This represents this physical property.
What is malleability?
This is the Electron-Dot diagram for Carbon.
Teacher will confirm answer
On the periodic table for any element, you can often find the atomic number, atomic mass, the name of the element, and this.
What is the atomic symbol?
This group of neutral elements have a full stable octet (outer shell), and they go by this name.
What are noble gases?
The force of attraction between particles are relatively weak for this state of matter.
What is gas?
Mixing two clear and colourless liquids gives a bright yellow and opaque liquid, which hints at this type of change.
What is a chemical change?
The periodic table, as we know it today arranged by the number of protons, was developed by this Russian chemist.
Who is Dmitri Mendeleev?
If an ion has 25 protons, 30 neutrons and 19 electrons, the ion has this charge.
What is +6?
Steel, apple juice, and air are all examples of this type of mixture.
What is a solution/homogeneous mixture?
A gas changing to a liquid is called condensation. Is this a physical or chemical change?
What is a physical change?
Metals and non-metals are separated on the periodic table by these elements that have properties of both metals and non-metals.
What are metalloids?
(NH4)2O is made up of this many atoms in total.
What is 11?
N = 2
H = 8
O = 1
The strength of the force of attraction between particles in a solid are ______.
What is very strong?
Burning wood at a campfire is this type of chemical property.
What is combustibility?
This is the Electron-Dot diagram for Iodine.
Teacher will confirm answer
Give the names of family 1,2,17 and 18 on the periodic table.
alkali metals, alkaline earth metals, halogens and noble gases
This scientist came up with the billiard ball model of the atom in the 1800s.
Who is John Dalton?
Particle theory rests on five main postulates: 1. All matter is made up of particles, with empty space between them 2. Different substances are made up of different particles, 3. All particles exhibit an attractive force, and 4. the particles of a substance move faster as the temperature increases, and 5) this...
What is "All particles are always in constant motion"?
This is the technical term of a solid that forms during a chemical change.
What is a precipitate?
Draw the Bohr-Rutherford, Lewis Dot AND standard atomic notation for chlorine.
Teacher will confirm answers
The periodic table has many trends and patterns. Identify 5 different patterns/things we are able to identify from looking at the periodic table.
family/group gives # of valence electrons
period gives # of shells
each family/group has similar characteristics
metals on left, non-metals on right
Draw the Bohr-Rutherford diagram for sodium chloride (ionic compound). Show the arrows of who is giving the electron away!
Teacher will confirm answer.