Argon

Pún bûn-chiuⁿ sī koan-hē Chi̍t-khoán hòa-ha̍k goân-sò͘. Chhōe kî-thaⁿ ēng-hoat, khòaⁿ Tāi-sò͘ (khu-pia̍t-ia̍h).

Argon sī tī chiu-kî-pió ê 1 chióng hoà-ha̍k goân-sò͘, goân-chú-hoan 18.

Argon,  ₁₈Ar

Spectral lines of argon
Ki-pún sèng-chit
Miâ, hû-hō	argon, Ar
Gōa-hêng	colorless gas exhibiting a lilac/violet glow when placed in a high voltage electric field
Argon tī chiu-kî-piáu lāi ê ūi-tì
Ne ↑ Ar ↓ Kr iâm-sò͘ ← argon → Kalium
Goân-chú-hoan	18
Goân-chú-liōng (±)	39.948(1)
Goân-sò͘ lūi-pia̍t	hi-iú khì-thé
Cho̍k, hun-khu	18 cho̍k, p khu
Chiu-kî	tē 3 chiu-kî
Tiān-chú pâi-lia̍t	[Ne] 3s2 3p6
per shell	2, 8, 8
Bu̍t-lí sèng-chit
Siòng	khì-thé
Iûⁿ-tiám	83.81 K ​(−189.34 °C, ​−308.81 °F)
Hut-tiám	87.302 K ​(−185.848 °C, ​−302.526 °F)
Bi̍t-tō͘ at stp (0 °C and 101.325 kPa)	1.784 g·L−1
1.3954 g·cm−3
Sam-siòng-tiám	83.8058 K, ​68.89 kPa
Lîm-kài-tiám	150.687 K, 4.863 MPa
Iûⁿ-hoà-jia̍t	1.18 kJ·mol−1
Cheng-hoat-jia̍t	6.53 kJ·mol−1
Jia̍t-iông-liōng	20.85 J·mol−1·K−1
cheng-khì-ap P (Pa) 1 10 100 1 k 10 k 100 k tī T (K)   47 53 61 71 87
Goân-chú sèng-chit
Sng-hòa-sò͘	0
Tiān-hū-tō͘	Pauling scale: no data
Tiān-lī-lêng	1st: 1520.6 kJ·mol−1 2nd: 2665.8 kJ·mol−1 3rd: 3931 kJ·mol−1 (more)
Kiōng-kè pòaⁿ-kèng	106±10 pm
Van der Waals pòaⁿ-kèng	188 pm
Cha̍p-lio̍k
Chiⁿ-thé kò͘-chō	​face-centered cubic (fcc)
Siaⁿ-sok	323 m·s−1 (gas, at 27 °C)
Jia̍t-thoân-tō-lu̍t	17.72×10-3  W·m−1·K−1
Chû-sèng	diamagnetic
CAS teng-kì pian-hō	7440-37-1
Le̍k-sú
Hoat-hiān kap siōng chá ê tông-ūi-sò͘	Lord Rayleigh and William Ramsay (1894)
Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: argon ê tông-ūi-sò͘
iso NA half-life DM DE (MeV) DP 36Ar 0.337% – (β+β+) 0.4335 36S 37Ar syn 35 d ε 0.813 37Cl 38Ar 0.063% 38Ar is stable with 20 neutrons 39Ar trace 269 y β− 0.565 39K 40Ar 99.600% 40Ar is stable with 22 neutrons 41Ar syn 109.34 min β− 2.49 41K 42Ar syn 32.9 y β− 0.600 42K
Decay modes in parentheses are predicted, but have not yet been observed