Polonyum
84
Po
Grup
16
Periyot
6
Blok
p
Protonlar
Elektronlar
Nötronlar
84
84
126
Temel Özellikleri
Atom numarası
84
Atom ağırlığı
[210]
Kütle Numarası
210
Kategori
Yarı metal
Renk
Gümüşi
Radyoaktif
Evet
Named after Poland, native country of Madam Curie
Kristal yapısı
Basit küp
Tarihi
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.
Enerji seviyesi başına Elektronlar
2, 8, 18, 32, 18, 6
Elektron dizilimi
[Xe] 4f14 5d10 6s2 6p4
Polonium is obtained by irradiating bismuth with high-energy neutrons or protons
Fiziksel Özellikleri
Faz
Katı
Yoğunluk
9,196 g/cm3
Ergime noktası
527,15 K | 254 °C | 489,2 °F
Kaynama noktası
1235,15 K | 962 °C | 1763,6 °F
Ergime ısısı
13 kJ/mol
Buharlaşma ısısı
100 kJ/mol
Isı kapasitesi
-
Dünya kabuğundaki bulunulabilirliği
yok
Evrendeki bulunulabilirliği
yok
CAS Numarası
7440-08-6
PubChem CID Numarası
yok
Atom Özellikleri
Atom yarıçapı
168 pm
Kovalent yarıçapı
140 pm
Elektronegatifliği
2,00 (Pauling ölçeği)
İyonlaşma enerjisi
8,417 eV
Atomik Hacim
22,23 cm3/mol
Isıl iletkenlik
0,2 W/cm·K
Yükseltgenme seviyeleri
-2, 2, 4, 6
Uygulamalar
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
İzotoplar
Kararlı izotoplar
-Kararsız izotoplar
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