c1- atomic structure Flashcards
1
Q
what are all substances made up of?
A
atoms
2
Q
whats a protons charge?
A
+1
3
Q
whats a neutrons charge?
A
0
4
Q
what does number of protons equal?
A
number of electrons
5
Q
whats the charge of electrons?
A
-1
6
Q
whats an element?
A
a substance made up of atoms that all have the same number of protons and neutrons
7
Q
whats an isoptope?
A
different forms of same element, same number of protons different number of neutrons.
8
Q
whats a compound?
A
2 or more atoms chemically joined together.
9
Q
what is simple distillation used for?
A
to seperate solutions
10
Q
what is fractional distillation used for?
A
to seperate a mixture of liquids
11
Q
who made the plum pudding model?
A
J.J Thompson
12
Q
who made the scattering experiment?
A
rutherford
13
Q
Bohr made what?
A
current nuclear model
14
Q
A
