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Molybdenum,  ₄₂Mo

ngoi-kôn
gray metallic
Kî-pún sin-sit
Miàng, fù-ho	Molybdenum, Mo
ngoi-hìn	gray metallic
Molybdenum chhai chû-khì-péu ke vi-chi
Cr ↑ Mo ↓ W niobium ← Molybdenum → technetium
ngièn-chṳ́ sì-sú	42
ngièn-chṳ́-liòng (±)	95.95(1)[1]
ngièn-su lui-phe̍t	ko-thu kîm-su̍k
Chhu̍k, fûn-khî	6 chhu̍k, d-block
chû-khì	period 5
thien-chṳ́ phài-lie̍t	[Kr] 4d5 5s1
per shell	2, 8, 18, 13, 1
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	2896 K ​(2623 °C, ​4753 °F)
pui-tiám	4912 K ​(4639 °C, ​8382 °F)
Me̍t-thu near Sit-vûn	10.28 g·cm−3
9.33 g·cm−3
Yùng-fa-ngie̍t	37.48 kJ·mol−1
Chîn-fat-ngie̍t	598 kJ·mol−1
Ngie̍t-yùng-liong	24.06 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 2742 2994 3312 3707 4212 4879
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	6, 5, 4, 3, 2, 1,[2] −1, −2, −4 ​(a strongly acidic oxide)
Thien-fu-sin	Pauling scale: 2.16
Thien-lì-nèn	1st: 684.3 kJ·mol−1 2nd: 1560 kJ·mol−1 3rd: 2618 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 139 pm
Khiung-ka pan-kang	154±5 pm
Miscellanea
Chîn-thí keu-chho	​body-centered cubic (bcc)
Sâng-suk thin rod	5400 m·s−1 (at r.t.)
Ngie̍t-phàng-chong	4.8 µm·m−1·K−1 (at 25 °C)
Ngie̍t-chhòn-thô-li̍t	138 W·m−1·K−1
Ngie̍t-khok-san-li̍t	54.3 mm2·s−1 (at 300 K)[3]
Thien-chú-li̍t	53.4 nΩ·m (at 20 °C)
Chhṳ̀-sin	paramagnetic[4]
Young's modulus	329 GPa
Shear modulus	126 GPa
Bulk modulus	230 GPa
Poisson ratio	0.31
Mohs hardness	5.5
Vickers hardness	1400–2740 MPa
Brinell hardness	1370–2500 MPa
CAS Registry Number	7439-98-7
Le̍k-sú
Fat-hien	Carl Wilhelm Scheele (1778)
First isolation	Peter Jacob Hjelm (1781)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Molybdenum ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 92Mo 14.84% >1.9×1020 y (β+β+) 1.6491 92Zr 93Mo syn 4×103 y ε – 93Nb 94Mo 9.25% – (SF) <4.485 95Mo 15.92% – (SF) <4.531 96Mo 16.68% – (SF) <5.771 97Mo 9.55% – (SF) <6.226 98Mo 24.13% >1×1014 y (β−β−) 0.1125 98Ru 99Mo syn 65.94 h β− 0.436, 1.214 99mTc γ 0.74, 0.36, 0.14 – 100Mo 9.63% 7.8×1018 y β−β− 3.04 100Ru
Decay modes in parentheses are predicted, but have not yet been observed

Molybdenum (Hon-ngî: 鉬 mù) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Mo, ngièn-chṳ́ su-muk he 42.