Show:
Changes and Properties
Matter
Periodic Table
Atomic Theory
Periodic Trends
100
List two examples of physical properties
What are density, color, shape, state of matter?
100
All things are made of this
What is matter
100
Family name of the group of elements on the periodic table are soft, shiny and reactive in water
What are the Alkali metals
100
This is the experiment performed by Rutherford
What is gold foil.
100
What is used to find the atomic radius of an atom.
What is bond distance
200
The difference between a physical change and a chemical change.
What is something new is created in a chemical change?
200
These two things are classified as pure substances
What are elements and compounds
200
What group reacts best with the alkali metals
What are the halogens
200
Who worked with the cathode-ray tube
Who is Thomson
200
Which group of metals is the most reactive and why?
What is Alkali metals
300
Physical or Chemical Change: Chocolate melting and Ice breaking
What is physical
300
The difference between exothermic and endothermic?
What is exothermic-releases energy and endothermic-requires energy
300
How many P, N and E are in the following elements. P
What is P=15, N=16, E=15
300
All atoms are indivisible is a part of the what.
What is Atomic Theory
300
Which trend creates negative ions in a compound?
What is Electronegativity
400
What separation technique would you use to get salt and water from a saltwater homogeneous solution
What is distillation
400
Endothermic or Exothermic Baking cookies and Melting
What is Endothermic
400
What are valence electrons?
What is electrons in the outer shell
400
List the scientists in order.
What is Dalton, Thomson, Rutherford, Bohr
400
What happens to chemical reactivity as you go down a group.
What is increases
500
List three ways you would know a chemical reaction has occurred.
What is color change, formation of precipitate, heat is produced, light is produced, bubbles
500
Heterogeneous or Homogenous
What is Lucky charms, Chunky Soup and Salad
500
What are the following group of elements called C-12, C-14 and C-15
What are isotopes?
500
Light is emitted when an excited electron does what
What is falls
500
What is the electron configuration for Phosphorus
What is 1s2 2s2 2p6 3s2 3p3