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atomic number 40
atomic number 41
atomic number 42
atomic number 43
atomic number 44
atomic number 45
atomic number 46
atomic number 47
atomic number 48
atomic number 49
atomic number 5
atomic number 50
atomic number 51
atomic number 52
atomic number 53
atomic number 54
-- atomic number 55 --
atomic number 56
atomic number 57
atomic number 58
atomic number 59
atomic number 6
atomic number 60
atomic number 61
atomic number 62
atomic number 63
atomic number 64
atomic number 65
atomic number 66
atomic number 67
atomic number 68
atomic number 69
atomic number 7
atomic number 55
Noun
1.
atomic number 55
-
a
soft
silver-white
ductile
metallic
element
(
liquid
at
normal
temperatures
);
the
most
electropositive
and
alkaline
metal
Synonyms:
caesium
,
cesium
,
Cs
caesium
,
cesium
,
cesium
137
,
Cs
,
metal
,
metallic
element
,
pollucite
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