Measurement
One source of uncertainty in measurement
What is human error or tools?
A solid has a _________ shape
What is definite?
What is the smallest part of matter?
Discovered the atom
Who is Democritus?
Rows are called
Convert 125 cm to km
What is 0.00125 km?
An example of a physical property
What is color, boiling point, melting point, mass, volume?
The three subatomic particles
What is proton, neutron, and electron?
Discovered the Atomic Theory of Matter
Who is John Dalton?
Columns or vertical lines are called
Accuracy is ...
What is how close to the target?
An example of a chemical property
What is ability to rust, ability to react with light, ability to react?
What is 6?
Discovered the electron.
Who is Thomson?
A metal _________ electrons
What is lose or donate?
Absolute zero in celsius
What is negative 273?
An example of a physical change
What is melting, freezing, boiling, evaporating, crushing, grinding?
Number of protons, neutrons and electrons in Aluminum (Al).
Atomic Number:13
Atomic Mass: 27
What is 13 protons and electrons and 14 neutrons?
Did the Gold Foil Experiment.
Who is Rutherford?
Lewis Dot Diagrams represent ___________ electrons.
What is valence?
Convert 78.5 cm to mm
What is 785 mm?
Example of a Chemical Change
What is burning or baking a cake?
The mass of an element is total number of
What is protons and neutrons?
Tried to say atoms weren't real
Who is Aristotle?
All element follow the _______ rule except Hydrogen and Helium which follow the duet rule.
What is octet?