キセノン
54
Xe
族
18
周期
5
ブロック
p
陽子
電子
中性子
54
54
77
一般特性
原子番号
54
原子量
131.293
質量数
131
カテゴリ
希ガス
色
無色
放射性
いいえ
From the Greek word xenon, stranger
結晶構造
面心立方格子
歴史
Xenon was discovered in England by the Scottish chemist William Ramsay and English chemist Morris Travers in 1898.
They found xenon in the residue left over from evaporating components of liquid air.
Spectroscopic analysis showed the previously unseen beautiful blue lines that indicated the presence of a new element.
They found xenon in the residue left over from evaporating components of liquid air.
Spectroscopic analysis showed the previously unseen beautiful blue lines that indicated the presence of a new element.
電子殻
2, 8, 18, 18, 8
電子配置
[Kr] 4d10 5s2 5p6
If inhaled, xenon can cause a person's voice to deepen
物理特性
相
気体
密度
0.005887 g/㎝3
融点
161.45 K | -111.7 °C | -169.06 °F
沸点
165.03 K | -108.12 °C | -162.62 °F
融解熱
2.3 kJ/mol
蒸発熱
12.64 kJ/mol
熱容量
0.158 J/g·K
地殻中における存在比
2×10-9%
宇宙空間における存在比
1×10-6%
CAS登録番号
7440-63-3
PubChem CID番号
23991
原子特性
原子半径
108 pm
共有結合半径
140 pm
電気陰性度
2.6 (ポーリングの値)
イオン化エネルギー
12.1298 eV
モル体積
37.3 ㎝3/mol
熱伝導率
0.0000569 W/㎝·K
酸化数
2, 4, 6, 8
用途
Xenon is used in flash lamps and arc lamps, and in photographic flashes.
Xenon is used in medicine as a general anesthetic and in medical imaging.
In nuclear energy applications, xenon is used in bubble chambers, probes, and in other areas where a high molecular weight and inert nature is desirable.
Xenon is used in medicine as a general anesthetic and in medical imaging.
In nuclear energy applications, xenon is used in bubble chambers, probes, and in other areas where a high molecular weight and inert nature is desirable.
Xenon is not toxic, but its compounds are highly toxic
同位体
安定同位体
124Xe, 126Xe, 128Xe, 129Xe, 130Xe, 131Xe, 132Xe, 134Xe, 136Xe不安定同位体
110Xe, 111Xe, 112Xe, 113Xe, 114Xe, 115Xe, 116Xe, 117Xe, 118Xe, 119Xe, 120Xe, 121Xe, 122Xe, 123Xe, 125Xe, 127Xe, 133Xe, 135Xe, 137Xe, 138Xe, 139Xe, 140Xe, 141Xe, 142Xe, 143Xe, 144Xe, 145Xe, 146Xe, 147Xe