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Molybdenum, 42 Mo
Ki-pún sèng-chit Miâ, hû-hō
molybdenum, Mo Gōa-hêng
gray metallic Molybdenum tī chiu-kî-piáu lāi ê ūi-tì
Goân-chú-hoan
42 Goân-chú-liōng (±)
95.95(1)[ 1] Goân-sò͘ lūi-pia̍t
kòe-tō͘ kim-sio̍k Cho̍k , hun-khu
6 cho̍k , d khu Chiu-kî
tē 5 chiu-kî Tiān-chú pâi-lia̍t
[Kr ] 4d5 5s1 per shell
2, 8, 18, 13, 1 Bu̍t-lí sèng-chit Siòng
solid Iûⁿ-tiám
2896 K (2623 °C, 4753 °F) Hut-tiám
4912 K (4639 °C, 8382 °F) Bi̍t-tō͘ (sek-un )
10.28 g·cm−3
9.33 g·cm−3 Iûⁿ-hoà-jia̍t
37.48 kJ·mol−1 Cheng-hoat-jia̍t
598 kJ·mol−1 Jia̍t-iông-liōng
24.06 J·mol−1 ·K−1
cheng-khì-ap
P (Pa)
1
10
100
1 k
10 k
100 k
tī T (K)
2742
2994
3312
3707
4212
4879
Goân-chú sèng-chit Sng-hòa-sò͘
6 , 5, 4 , 3, 2, 1,[ 2] −1, −2, −4 (a strongly acid ic oxide) Tiān-hū-tō͘
Pauling scale: 2.16 Tiān-lī-lêng
1st: 684.3 kJ·mol−1 2nd: 1560 kJ·mol−1 3rd: 2618 kJ·mol−1 Goân-chú pòaⁿ-kèng
empirical: 139 pm Kiōng-kè pòaⁿ-kèng
154±5 pm Cha̍p-lio̍k Chiⁿ-thé kò͘-chō
body-centered cubic (bcc) Siaⁿ-sok (sòe kùn-á)
5400 m·s−1 (at r.t. ) Jia̍t-phòng-tiòng
4.8 µm·m−1 ·K−1 (at 25 °C) Jia̍t-thoân-tō-lu̍t
138 W·m−1 ·K−1 Jia̍t-khok-sàn-lu̍t
54.3 mm2 ·s−1 (at 300 K)[ 3] Tiān-chó͘-lu̍t
53.4 nΩ·m (at 20 °C) Chû-sèng
paramagnetic [ 4] Young hē-sò͘
329 GPa Shear hē-sò͘
126 GPa Bulk hē-sò͘
230 GPa Poisson pí
0.31 Mohs ngē-tō͘
5.5 Vickers ngē-tō͘
1400–2740 MPa Brinell ngē-tō͘
1370–2500 MPa CAS teng-kì pian-hō
7439-98-7 Le̍k-sú Hoat-hiān
Carl Wilhelm Scheele (1778) Siōng chá hû-lî
Peter Jacob Hjelm (1781) Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: molybdenum ê tông-ūi-sò͘
iso
NA
half-life
DM
DE (MeV )
DP
92 Mo
14.84%
>1.9×1020 y
(β+ β+ )
1.6491
92 Zr
93 Mo
syn
4×103 y
ε
–
93 Nb
94 Mo
9.25%
–
(SF )
<4.485
95 Mo
15.92%
–
(SF)
<4.531
96 Mo
16.68%
–
(SF)
<5.771
97 Mo
9.55%
–
(SF)
<6.226
98 Mo
24.13%
>1×1014 y
(β− β− )
0.1125
98 Ru
99 Mo
syn
65.94 h
β−
0.436, 1.214
99m Tc
γ
0.74, 0.36, 0.14
–
100 Mo
9.63%
7.8×1018 y
β− β−
3.04
100 Ru
Decay modes in parentheses are predicted, but have not yet been observed
Molybdenum sī 1 ê hoà-ha̍k goân-sò͘ . I ê goân-chú-hoan sī 42, hoà-ha̍k hû-hō sī Mo.