វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
តូច
មធ្យម
ធំ
Electron
noun
1.
(a
particle
of
matter
with a
negative
electric
charge
)
អស្យាណូ, អេឡិចត្រុង
2.
(វេជ្ជសាស្ត្រ)
អេឡិចត្រុង
ឃ្លាដែលទាក់ទង
electron microscope
-
មីក្រូស្កុបប្រើអេឡិចត្រុង
ENGLISH MEANING
noun
1.
Amber
;
also
, the
alloy
of
gold
and
silver
,
called
electrum
.
1.
One of
those
particles
, having about one
thousandth
the
mass
of a
hydrogen
atom
,
which
are
projected
from the
cathode
of a
vacuum
tube
as the
cathode
rays
and from
radioactive
substances
as the
beta
rays
; --
called
also
corpuscle
. The electron
carries
(or is) a
natural
unit
of
negative
electricity
,
equal
to 3.4 x
10-10
electrostatic
units
. It has
been
detected
only
when
in
rapid
motion
;
its
mass
,
which
is
electromagnetic
, is
practically
constant
at the
lesser
speeds
,
but
increases
as the
velocity
approaches
that
of
light
. Electrons are all of one
kind
, so
far
as
known
, and
probably
are the
ultimate
constituents
of all
atoms
. An
atom
from
which
an electron has
been
detached
has a
positive
charge
and is
called
a
coelectron
.