Molibdenum

42
Mo
Kumpulan
6
Kala
5
Blok
d
Proton
Elektron
Neutron
42
42
54
Ciri-Ciri Am
Nombor atom
42
Berat atom
95.96
Nombor jisim
96
Kategori
Logam peralihan
Warna
Kelabu
Radioaktif
Tidak
From the Greek word molybdo, lead
Struktur hablur
Pusat Badan Kubik
Sejarah
Molybdenite was often confused for graphite and it was thought to contain lead.

In 1778 Swedish scientist Carl Wilhelm Scheele proved that molybdenite was not graphite nor did it contain lead.

In 1781, Scheele's friend and countryman, Peter J. Hjelm isolated the metal by using carbon and linseed oil.
Bilangan elektron per petala
2, 8, 18, 13, 1
Konfigurasi elektron
[Kr] 4d5 5s1
Mo
Molybdenum is essential for plant foliage health
Ciri-Ciri Fizikal
Fasa
Pepejal
Ketumpatan
10.22 g/cm3
Takat lebur
2896.15 K | 2623 °C | 4753.4 °F
Takat didih
4912.15 K | 4639 °C | 8382.2 °F
Haba pelakuran
36 kJ/mol
Haba pengewapan
600 kJ/mol
Muatan haba molar
0.251 J/g·K
Banyak pada kerak bumi
0.00011%
Banyak pada alam semesta
5×10-7%
Molybdenum
Kredit imej: Images-of-elements
Molybdenum with rough, oxidized surface
Nombor CAS
7439-98-7
PubChem CID Number
23932
Ciri-Ciri Atom
Jejari atom
139 pm
Jejari kovalen
154 pm
Keelektronegatifan
2.16 (Skala Pauling)
Kebolehan mengion
7.0924 eV
Isipadu atom
9.4 cm3/mol
Daya pengaliran terma
1.38 W/cm·K
Keadaan pengoksidaan
-2, -1, 1, 2, 3, 4, 5, 6
Aplikasi
Molybdenum is used as glass furnace electrodes due to its high melting point.

The metal is also used in nuclear energy applications and for missile and aircraft parts.

Molybdenum is valuable as a catalyst in the refining of petroleum.

Molybdenum is used in small quantities to harden steel and is used in many alloys.
Molybdenum is toxic in all but small quantities
Isotop
Isotop stabil
92Mo, 94Mo, 95Mo, 96Mo, 97Mo, 98Mo
Isotop tidak stabil
83Mo, 84Mo, 85Mo, 86Mo, 87Mo, 88Mo, 89Mo, 90Mo, 91Mo, 93Mo, 99Mo, 100Mo, 101Mo, 102Mo, 103Mo, 104Mo, 105Mo, 106Mo, 107Mo, 108Mo, 109Mo, 110Mo, 111Mo, 112Mo, 113Mo, 114Mo, 115Mo