វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
តូច
មធ្យម
ធំ
Bismuth
noun
1.
(A
hard
,
brittle
,
metallic
chemical
element
,
symbol
Bi)
ប៊ីស្មត (ធាតុគីមី)
ENGLISH MEANING
noun
1.
One of the
elements
; a
metal
of a
reddish
white
color
,
crystallizing
in
rhombohedrons
. It is
somewhat
harder
than
lead
, and
rather
brittle
;
masses
show
broad
cleavage
surfaces
when
broken
across
. It
melts
at
507
Fahr
.,
being
easily
fused
in the
flame
of a
candle
. It is
found
in a
native
state
, and as a
constituent
of
some
minerals
.
Specific
gravity
9.8.
Atomic
weight
207.5.
Symbol
Bi.