Ch2 Flashcards
1
Q
Law of definite proportions
A
Same compound
2
Q
Law of multiple proportions
A
Different compounds
3
Q
Atomic theory
A
Atoms related to elements and compounds
4
Q
Cathode ray tube
A
JJ tomphson. Charge/ mass ratio of e-
5
Q
Oil mist chamber
A
Robert mulliken. Charge of e-
6
Q
Gold foil bombardment
A
Ernest Rutherford. Structure of atom. Nucleus.
7
Q
Isotopes.
A
Atoms with same atomic number but differ in neutron number
8
Q
Mass number
A
Protons and neutrons
9
Q
Atomic number
A
Protons
10
Q
Grams - moles - # of atoms
A
-Molar mass-avogadros #-
11
Q
Metals
A
Shine. Conduct electricity. Conduct heat. Malleable. Lose e-
12
Q
Nonmetals
A
Color/ transparent. Electrical insulator. Heat insulator. Brittle. Gain e-
13
Q
Law of conservation of mass
A
Mass of all reactants equals mass of all products
