Polonium

84
Po
Groep
16
Periode
6
Blok
p
Protrone
Elektrone
Neutrone
84
84
126
Algemene Eienskappe
Atoom Nommer
84
Atoommassa
[210]
Massa Nommer
210
Kategorie
Metalloïdes
Kleur
Silver
Radioaktief
Ja
Named after Poland, native country of Madam Curie
Kristalstruktuur
Eenvoudige kubus
Geskiendenis
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.
Elektrone per skil
2, 8, 18, 32, 18, 6
Elektronkonfigurasie
[Xe] 4f14 5d10 6s2 6p4
Po
Polonium is obtained by irradiating bismuth with high-energy neutrons or protons
Fisiese Eienskappe
Fase
Soliede
Digtheid
9,196 g/cm3
Smeltpunt
527,15 K | 254 °C | 489,2 °F
Kookpunt
1235,15 K | 962 °C | 1763,6 °F
Heat of Fusion
13 kJ/mol
Heat of Vaporization
100 kJ/mol
Spesifieke Hitte Kapasiteit
-
Oorvloed in die aardkors
n/a
Oorvloed in die heelal
n/a
Pierre
Beeld Krediete: hp.ujf.cas.cz
Pierre and Marie Curie in the laboratory
CAS Nommer
7440-08-6
PubChem CID Nommer
n/a
Atomiese Eienskappe
Atoom radius
168 pm
Kovalente Radius
140 pm
Elektronegatiewiteit
2,00 (Pauling scale)
Ionisasie potensiaal
8,417 eV
Atoom volume
22,23 cm3/mol
Termiese geleidingsvermoë
0,2 W/cm·K
Oksidasiestate
-2, 2, 4, 6
Toepassings
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 is highly dangerous and radioactive
Isotope
Stabiele Isotope
-
Onstabiele Isotope
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