វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
តូច
មធ្យម
ធំ
Chromium
Same as:
chrome
ENGLISH MEANING
noun
1.
A
comparatively
rare
element
occurring
most
abundantly
in the
mineral
chromite
.
Atomic
weight
52.5.
Symbol
Cr.
When
isolated
it is a
hard
,
brittle
,
grayish
white
metal
,
fusible
with
difficulty
.
Its
chief
commercial
importance
is for
its
compounds
, as
potassium
chromate
,
lead
chromate
,
etc
.,
which
are
brilliantly
colored
and are
used
dyeing
and
calico
printing
.
Called
also
chrome
.