원자 번호 11번의 화학 원소(기호 Na)인 나트륨. 무르고 은백색이며 반응성이 매우 높은 알칼리 금속이다.
The chemical element of atomic number 11 (symbol Na), a soft, silver-white, highly reactive metal belonging to the alkali metal group.
예문:
"Excessive sodium intake is often linked to high blood pressure and cardiovascular disease."
"Pure sodium metal must be stored under oil because it reacts violently with water and air."
"Sodium chloride, commonly known as table salt, is essential for nerve and muscle function."