Plutonium

94
Pu
Golongan
n/a
Periode
7
Blok
f
Proton
Elektron
Neutron
94
94
150
Sifat Umum
Nomor atom
94
Massa atom
[244]
Nomor massa
244
Kategori
Aktinida
Warna
Perak
Radioaktif
Ya
Named after the planet Pluto
Struktur kristal
Monoklinik Sederhana
Sejarah
Plutonium was first produced in 1940 by Glenn T. Seaborg, Edwin M. McMillan, Joseph W. Kennedy and Arthur Wahl.

Plutonium-238 was produced by deuteron bombardment of uranium-238 in the 60-inch cyclotron at the University of California, Berkeley.

The Berkeley team made neptunium-238 which decayed to plutonium-238.
Elektron per kulit
2, 8, 18, 32, 24, 8, 2
Konfigurasi elektron
[Rn] 5f6 7s2
Pu
The atomic bomb dropped on Nagasaki, Japan in 1945 had a plutonium core
Sifat Fisika
Fase
Solid
Kepadatan
19,816 g/cm3
Titik lebur
912,55 K | 639,4 °C | 1182,92 °F
Titik didih
3501,15 K | 3228 °C | 5842,4 °F
Kalor peleburan
n/a
Kalor penguapan
325 kJ/mol
Kapasitas kalor molar
-
Kelimpahan di kerak bumi
n/a
Kelimpahan di alam semesta
n/a
A
Kredit Gambar: Wikimedia Commons (Los Alamos National Laboratory)
A ring of weapons-grade 99.96% pure electrorefined plutonium, enough for one bomb core
Nomor CAS
7440-07-5
PubChem CID Number
23940
Sifat Atom
Jari-jari atom
159 pm
Jari-jari kovalen
187 pm
Elektronegativitas
1,28 (Skala Pauling)
Potensi Ionisasi
6,0262 eV
Volume atom
12,32 cm3/mol
Kondusivitas termal
0,0674 W/cm·K
Bilangan oksidasi
3, 4, 5, 6, 7, 8
Aplikasi
The isotope plutonium-239 is a key fissile component in nuclear weapons, due to its ease of fission and availability.

Plutonium-238 has also been used successfully to power artificial heart pacemakers, to reduce the risk of repeated surgery.

Plutonium-238 mixed with beryllium is used to generate neutrons for research purposes.
Plutonium is harmful due to its radioactivity
Isotop
Isotop stabil
-
Isotop tidak stabil
228Pu, 229Pu, 230Pu, 231Pu, 232Pu, 233Pu, 234Pu, 235Pu, 236Pu, 237Pu, 238Pu, 239Pu, 240Pu, 241Pu, 242Pu, 243Pu, 244Pu, 245Pu, 246Pu, 247Pu