Kap

Kap, ₁₉K
ngoi-k?n
	silvery gray; ; ; Spectral lines of potassium
K?-pún sin-sit
Miàng, fù-ho	Kap, K
Y?n-ng?	potassium
ngoi-hìn	silvery gray
Kap chhai ch?-khì-péu ke vi-chi
	argon ← Kap → Koi
ngièn-ch?? sì-sú	19
ngièn-ch??-liòng (±)	39.0983(1)
ngièn-su lui-phe?t	kán-k?m-su?k
Chhu?k, f?n-kh?	1 chhu?k, s-block
ch?-khì	period 4
thien-ch?? phài-lie?t	[Ar] 4s1
per shell	2, 8, 8, 1
vu?t-l? sin-ch?t
Si?ng	ku-thí
yùng-tiám	336.7 K (63.5 °C, 146.3 °F)
pui-tiám	1032 K (759 °C, 1398 °F)
Me?t-thu near Sit-v?n	0.862 g·cm?3
	0.828 g·cm?3
lìm-kie-tiám	2223 K, 16 MPa
Yùng-fa-ngie?t	2.33 kJ·mol?1
Ch?n-fat-ngie?t	76.9 kJ·mol?1
Ngie?t-yùng-liong	29.6 J·mol?1·K?1
Ngièn-ch?? sin-ch?t
Y?ng-fa-su	+1, ?1 (a strongly basic oxide)
Thien-fu-sin	Pauling scale: 0.82
Thien-lì-nèn	1st: 418.8 kJ·mol?1 ; 2nd: 3052 kJ·mol?1 ; 3rd: 4420 kJ·mol?1 ; (more)
Ngièn-ch?? pan-kang	empirical: 227 pm
Khiung-ka pan-kang	203±12 pm
Van der Waals pan-kang	275 pm
Miscellanea
Ch?n-thí keu-chho	body-centered cubic (bcc)
Sang-suk thin rod	2000 m·s?1 (at 20 °C)
Ngie?t-phàng-chong	83.3 μm·m?1·K?1 (at 25 °C)
Ngie?t-chhòn-th?-li?t	102.5 W·m?1·K?1
Thien-chú-li?t	72 nΩ·m (at 20 °C)
Chh??-sin	paramagnetic
Young's modulus	3.53 GPa
Shear modulus	1.3 GPa
Bulk modulus	3.1 GPa
Mohs hardness	0.4
Brinell hardness	0.363 MPa
CAS Registry Number	7440-09-7
Le?k-sú
Hoat-kiàn kap siōng chá ê t?ng-ūi-sò?	Humphry Davy (1807)
Chui vún-thin ke thùng-vi-su
	Chú vùn-ch?ng: Kap ke thùng-vi-su
ε	40Ar
β+	40Ar

百度 ”这四个“不容易”，提醒我们在新长征路上必须始终坚定信仰、牢记初心，以应对“四大考验”、克服“四种危险”。

Kap (鉀) he yit-chúng Fa-ho?k ngièn-su, fa-ho?k fù-ho vì K, ngièn-ch?? su-muk he 19, chhai Ngièn-su ch?-khì-péu ch?ng thi-s??p-kiú vi.

Chham-kháu ch??-liau