Sir
Joseph
John
Thomson
was
an
English
____________________
,
the
____________________
of
the
electron
.
Thomson
____________________
____________________
in
1856
in
Manchester
,
England
,
of
Scottish
parentage
.
He
____________________
engineering
at
Owen's
College
,
Manchester
,
and
moved
on
to
the
University
of
Cambridge
.
In
1884
he
became
____________________
of
experimental
physics
.
One
of
his
students
was
Ernest
Rutherford
,
who
would
later
____________________
him
in
the
post
.
Influenced
by
the
work
of
James
Clerk
Maxwell
,
and
the
discovery
of
the
X
-
ray
,
he
____________________
the
existence
of
"
corpuscles
"
or
____________________
.
His
discovery
was
made
known
in
1897
,
and
caused
a
sensation
in
____________________
circles
,
eventually
resulting
in
his
being
awarded
a
____________________
____________________
(
1906
)
.
Prior
to
the
____________________
of
World
War
I
,
he
made
another
ground
-
breaking
discovery
:
the
____________________
.
In
1918
,
he
became
Master
of
Trinity
College
,
Cambridge
.
He
died
in
1940
and
____________________
____________________
in
Westminster
Abbey
,
close
to
____________________
____________________
.
