MISC.
This type of of change occurs when a cool, shiny metal is added to water in a beaker, and rapid bubbling occurs.
What is a chemical change?
A change that does not produce a new substance.
What is a Physical Change?
Rows on the Periodic Table are called....
They tell you the number of....
What are Periods?
What are electron shells?
Mendeleev was the first to design the periodic table using which physical property.
What is atomic weight/mass?
This Group 17 element has the highest electronegativity.
What is Fluorine?
Group 16 elements are placed there because they all contain this many valence electrons.
What is 6 valence electrons?
The five signs of chemical change.
What are; smoke/fire, bubbles/fizzing, unexpected color change, unexpected temperature change, and rust?
The two things that Ernest Rutherford's Gold Foil Experiments showed.
What are the atom being mostly empty space, and the nucleus?
This state of matter takes the shape AND the volume of any container in which it is contained.
What is a gas?
What are radio waves?
The difference between INTENSIVE and EXTENSIVE properties.
INTENSIVE DOES NOT depend on the amount of matter, EXTENSIVE DOES depend on the amount of matter.
Heisenberg created the atomic model which show that electrons are....
Found in regions called orbitals.
What are Ultraviolet, X-Rays, and Gamma rays?
All samples of H2O (at 1 atmosphere of pressure and 20oC) must have the same...
Mass, Weight, Density, or Volume
What is Density?
Mass (grams) X (units)
4.5 0.527
13.5 1.158
27.0 3.162
Based on the data, is property X an INTENSIVE or EXTENSIVE property?
Extensive because it increases with the size of the sample.
Columns in the Periodic Table are called....
They tell you the number of....
What is a Group?
What are Valence Electrons?
J.J. Thomson used this experiment to create his "Plum-pudding" model.
What is the Cathode Ray Tube?
This element has the tendency to lose an electron:
Argon, Aluminum, Phosphorous, or Sodium
What is Sodium?
Describe trend of atomic radius going down a group and left to right on the Periodic Table.
Down a group: increases
Left to right: decreases
Two samples of sulfur, oxygen, and sodium have the same; color, melting point, density, and reaction with barium chloride. These two samples are the same...
What is compound?
Which three elements would have the most similar chemical properties?
Mg, K, Ni, Al, Ne, Ca, Si, Ba
Mg, Ca, Ba
Arrange these models in order from oldest to newest:
Modern model, Billiard-Ball model, Rutherford model, Plum-pudding model, Bohr model
Billiard-Ball, Plum-pudding, Rutherford, Bohr, Modern
The reason why argon does not bond to atoms of a different element.
What is the fact that argon has 8 valence electrons and is happy?