Structure of the atom and isotopes Flashcards
1
Q
three scientists which have heavily contributed to our understanding of the structure of the atom are
A
Ernest Rutherford, J.J. Thomson and James Chadwick.
2
Q
J.J. Thomson discovered the
A
electron in 1897
3
Q
Rutherford discovered the
A
proton in 1917
4
Q
Chadwick discovered the
A
neutron in 1932
5
Q
the symbol for a proton is
A
p
6
Q
the symbol for a neutron is
A
n
7
Q
the symbol for an electron is
A
e-
8
Q
the relative mass of a proton is
A
1
9
Q
the relative mass of a neutron is
A
1
10
Q
the relative mass of an electron is
A
1/1840
11
Q
the relative charge of a proton is
A
+1
12
Q
the relative charge of an electron is
A
-1
13
Q
the relative charge of a neutron is
A
0
14
Q
protons are found in the
A
nucleus
15
Q
electrons are be found in
A
energy levels surrounding the nucleus
