Matter
Examples include density, boiling point, and mass.
What are physical properties?
The positive subatomic particle.
What is a proton?
Isotopes that spontaneously decay are ___.
What is radioactive?
Known for Law of Conservation of Mass.
Who is Lavoisier?
Number of contestants on Jeopardy.
What is 3?
When a substance becomes a new substance.
What is chemical change?
Protons + Neutrons
What is mass number?
An atom with mass number = 9 and atomic number = 4 has this many neutrons.
What is 5 neutrons?
Known for "billiard ball" atomic theory in early 1800's.
Who is Dalton?
The decade in which Alex Trebek began hosting Jeopardy.
What are the 1980's?
A mixture like salt water that is uniform throughout.
What is a homogeneous mixture?
An atom with 3 protons and 1+ charge has this many electrons.
What is 2 electrons?
Result of calculating a weighted average of isotope masses.
What is (average) atomic mass?
Stated electrons orbit the nucleus in rings.
Who is Bohr?
Holds record for longest winning streak on Jeopardy.
Who is Ken Jennings?