ヒ素 Arsenic

原子番号３３番の元素はヒ素「As」。

Arsenic (or its compounds) is used in insecticides, as a dopant in solid-state devices such as transistors and in alloys where it has a hardening effect.  Arsenic compounds in quantity are poisonous.  Ground water may contain sufficient arsenic to give health problems.

単語ノート

arsenic：ヒ素
insecticide：殺虫剤
dopant：ドーパント
solid-state device：半導体素子
such as ~：〜などの
transistor：トランジスタ
hardening effect：硬化作用
ground water：地下水
contain：含む
sufficient：十分な
health problem：健康問題