Chemistry Flashcards
1
Q
What is mass?
A
A measure the amount of matter in an object
2
Q
What are physical properties?
A
Boiling point Freezing point Melting point Color Shape Malleability Ductility Odor Density Size volume Solubility Polarity
3
Q
What are chemical properties?
A
Flammability
Combust ability
Radioactivity
Biological decomposition
4
Q
What did dalton do?
A
First modern atomic theory
5
Q
Democritus
A
Atom term
6
Q
Mendeleev
A
Father of the perodic table of elements
7
Q
JJ Thompson
A
Discovered the electron
8
Q
Moseley
A
The atomic number of elements is equal to the number of protons in the nucleus
9
Q
Bohr
A
Modeled an arrangement of electrons arrangement of nucleus
10
Q
Proton
A
Mass of 1 a.m.u
11
Q
Neutron
A
Mass slightly greater than 1amu
12
Q
Electron
A
The mass of 1 /856 amu
13
Q
What is matter?
A
anything that has mass and takes up space
14
Q
Ions
A
Atoms that have gained or lost an e-
