18
Ar
아르곤
39.948 u
아르곤
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Cite "아르곤"
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주기
3
족
18
블록
p-블록
상 (표준 상태)
Gas
아르곤은 지구 대기에서 0.93%를 차지하는 세 번째로 풍부한 기체이다. 용접과 조명에서 불활성 보호 기체로 쓰인다.
외관: 무색 기체
더 많은 비활성 기체
Frequently Asked Questions
What is 아르곤?
아르곤 (Ar) is a chemical element with atomic number 18. It is a gas at standard temperature and pressure, classified as a 비활성 기체.
What are the key properties of 아르곤?
아르곤 has an atomic mass of 39.948 u, density of 0.0017837 g/cm³, melting point of -189.3°C, boiling point of -185.8°C.
What is the electron configuration of 아르곤?
The electron configuration of 아르곤 is [Ne] 3s2 3p6. It is in the p-block of the periodic table.
Who discovered 아르곤?
아르곤 was discovered by Lord Rayleigh in 1894.