Polonium
84
Po
Kumpulan
16
Kala
6
Blok
p
Proton
Elektron
Neutron
84
84
126
Ciri-Ciri Am
Nombor atom
84
Berat atom
[210]
Nombor jisim
210
Kategori
Metaloid
Warna
Perak
Radioaktif
Ya
Named after Poland, native country of Madam Curie
Struktur hablur
Kubik Ringkas
Sejarah
Polonium was discovered by Marie and Pierre Curie in 1898 in Paris.
This element was the first one discovered by the Curies while they were investigating the cause of pitchblende radioactivity.
The dangers of working with radioactive elements were not known when the Curies made their discoveries.
This element was the first one discovered by the Curies while they were investigating the cause of pitchblende radioactivity.
The dangers of working with radioactive elements were not known when the Curies made their discoveries.
Bilangan elektron per petala
2, 8, 18, 32, 18, 6
Konfigurasi elektron
[Xe] 4f14 5d10 6s2 6p4
Polonium is obtained by irradiating bismuth with high-energy neutrons or protons
Ciri-Ciri Fizikal
Fasa
Pepejal
Ketumpatan
9.196 g/cm3
Takat lebur
527.15 K | 254 °C | 489.2 °F
Takat didih
1235.15 K | 962 °C | 1763.6 °F
Haba pelakuran
13 kJ/mol
Haba pengewapan
100 kJ/mol
Muatan haba molar
-
Banyak pada kerak bumi
Tiada
Banyak pada alam semesta
Tiada
Nombor CAS
7440-08-6
Nombor PubChem CID
Tiada
Ciri-Ciri Atom
Jejari atom
168 pm
Jejari kovalen
140 pm
Keelektronegatifan
2.00 (Skala Pauling)
Kebolehan mengion
8.417 eV
Isipadu atom
22.23 cm3/mol
Daya pengaliran terma
0.2 W/cm·K
Keadaan pengoksidaan
-2, 2, 4, 6
Aplikasi
Polonium is used to eliminate static electricity produced during processes such as rolling paper, wire and sheet metal.
Polonium can be mixed or alloyed with beryllium to provide a source of neutrons.
It is also used in anti-static brushes to eliminate dust on photographic film.
Polonium can be mixed or alloyed with beryllium to provide a source of neutrons.
It is also used in anti-static brushes to eliminate dust on photographic film.
Polonium is highly dangerous and radioactive
Isotop
Isotop stabil
-Isotop tidak stabil
188Po, 189Po, 190Po, 191Po, 192Po, 193Po, 194Po, 195Po, 196Po, 197Po, 198Po, 199Po, 200Po, 201Po, 202Po, 203Po, 204Po, 205Po, 206Po, 207Po, 208Po, 209Po, 210Po, 211Po, 212Po, 213Po, 214Po, 215Po, 216Po, 217Po, 218Po, 219Po, 220Po