Nomor atom | 12 |
---|---|
Massa atom | 24.305 |
Nomor massa | 24 |
Golongan | 2 |
---|---|
Periode | 3 |
Blok | s |
Proton | 12 p+ |
---|---|
Neutron | 12 n0 |
Elektron | 12 e- |
Jari-Jari Atom | 150 pm
|
---|---|
Volume molar | 14 cm³/mol
|
Jari-jari kovalen | 139 pm
|
Metallic Radius | 136 pm
|
Jari-jari ion | 57 pm
|
Crystal Radius | 71 pm
|
Jari-jari van der Waals | 173 pm
|
kepadatan | 1,74 g/cm³
|
Energi | |
---|---|
proton affinity | 819,6 kJ/mol
|
Afinitas elektron | |
Energi ionisasi | 7,646235 eV/particle
|
Panas penguapan | 131,8 kJ/mol
|
kalor peleburan | 9,2 kJ/mol
|
Perubahan entalpi pembentukan standar | 147,1 kJ/mol
|
Elektron | |
kelopak elektron | 2, 8, 2 |
Elektron valensi | 2 ⓘ |
konfigurasi elektron | [Ne] 3s2ⓘ 1s2 2s2 2p6 3s2 |
bilangan oksidasi | 0, 1, 2 |
elektronegativitas | 1.31
|
Electrophilicity Index | |
kondisi dasar materi | |
fase zat | Solid |
gaseous state of matter | |
Titik didih | 1.363,15 K
|
Titik lebur | 923,15 K
|
critical pressure | |
critical temperature | |
Titik tripel | |
appearance | |
warna | Perak
|
appearance | shiny grey solid |
Indeks bias | |
thermodynamic material property | |
Kondusivitas termal | 156 W/(m K)
|
Pemuaian | 0,0000248 1/K
|
molar heat capacity | 24,869 J/(mol K)
|
Kapasitas kalor molar | 1,023 J/(g⋅K)
|
heat capacity ratio | |
electrical properties | |
tipe | Conductor |
konduktivitas listrik | 23 MS/m
|
resistivitas listrik | 0,00000004399999999999 m Ω
|
superkonduktivitas | |
magnetisme | |
tipe | paramagnetic |
Suseptibilitas magnetik batuan (Mass) | 0,0000000069 m³/Kg
|
Suseptibilitas magnetik batuan (Molar) | 0,000000000168 m³/mol
|
Suseptibilitas magnetik batuan (Volume) | 0,000012
|
magnetic ordering | |
Curie temperature | |
Néel temperature | |
struktur | |
Struktur kristal | Segienam Sederhana (HEX) |
Konstanta kisi | 3,21 Å
|
Lattice Angles | π/2, π/2, 2 π/3 |
mechanical property | |
Kekerasan | 2,5 MPa
|
Modulus kompresi | 45 GPa
|
Modulus geser | 17 GPa
|
modulus Young | 45 GPa
|
Rasio Poisson | 0,29
|
kecepatan suara | 4.602 m/s
|
klasifikasi | |
Kategori | Logam alkali tanah, Alkaline earth metals |
CAS Group | IIA |
IUPAC Group | IIA |
Glawe Number | 73 |
Mendeleev Number | 76 |
Pettifor Number | 73 |
Geochemical Class | major |
Klasifikasi Goldschmidt | litophile |
Isotop stabil | 3 |
---|---|
Isotop tidak stabil | 20 |
Natural Isotopes | 3 |
Nomor massa | 19 |
---|---|
nomor neutron | 7 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 5 ± 3 ps
|
Spin | 1/2 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 2007 |
parity | - |
modus peluruhan | intensitas |
---|---|
2p (2-proton emission) | 100% |
Nomor massa | 20 |
---|---|
nomor neutron | 8 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 90,4 ± 0,5 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1974 |
parity | + |
modus peluruhan | intensitas |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 30.3% |
Nomor massa | 21 |
---|---|
nomor neutron | 9 |
bobot atom | |
g-factor | -0,3932 ± 0,0028
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 120 ± 0,4 ms
|
Spin | 5/2 |
nuclear quadrupole moment | |
tanggal penemuan | 1963 |
parity | + |
modus peluruhan | intensitas |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 20.1% |
β+α (β+-delayed α emission) | 0.116% |
B+pA | 0.016% |
Nomor massa | 22 |
---|---|
nomor neutron | 10 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 3,8745 ± 0,0007 s
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1961 |
parity | + |
modus peluruhan | intensitas |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nomor massa | 23 |
---|---|
nomor neutron | 11 |
bobot atom | |
g-factor | -0,35753333333333 ± 0,0002
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 11,3039 ± 0,0032 s
|
Spin | 3/2 |
nuclear quadrupole moment | 0,114 ± 0,003
|
tanggal penemuan | 1939 |
parity | + |
modus peluruhan | intensitas |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nomor massa | 24 |
---|---|
nomor neutron | 12 |
bobot atom | |
g-factor | 0
|
natural abundance | 78,965 ± 0,049
|
peluruhan radioaktif | isotop stabil |
Waktu paruh | Not Radioactive ☢️ |
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1920 |
parity | + |
Nomor massa | 25 |
---|---|
nomor neutron | 13 |
bobot atom | |
g-factor | -0,342132 ± 0,000012
|
natural abundance | 10,011 ± 0,013
|
peluruhan radioaktif | isotop stabil |
Waktu paruh | Not Radioactive ☢️ |
Spin | 5/2 |
nuclear quadrupole moment | 0,199 ± 0,002
|
tanggal penemuan | 1920 |
parity | + |
Nomor massa | 26 |
---|---|
nomor neutron | 14 |
bobot atom | |
g-factor | 0
|
natural abundance | 11,025 ± 0,038
|
peluruhan radioaktif | isotop stabil |
Waktu paruh | Not Radioactive ☢️ |
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1920 |
parity | + |
Nomor massa | 27 |
---|---|
nomor neutron | 15 |
bobot atom | |
g-factor | -0,8212 ± 0,003
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 9,435 ± 0,027 m
|
Spin | 1/2 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1934 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
Nomor massa | 28 |
---|---|
nomor neutron | 16 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 20,915 ± 0,009 h
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1953 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
Nomor massa | 29 |
---|---|
nomor neutron | 17 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 1,3 ± 0,12 s
|
Spin | 3/2 |
nuclear quadrupole moment | -0,16 ± 0,04
|
tanggal penemuan | 1971 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
Nomor massa | 30 |
---|---|
nomor neutron | 18 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 317 ± 4 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1971 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 0.06% |
Nomor massa | 31 |
---|---|
nomor neutron | 19 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 270 ± 2 ms
|
Spin | 1/2 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1977 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 6.2% |
Nomor massa | 32 |
---|---|
nomor neutron | 20 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 80,4 ± 0,4 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1977 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 5.5% |
Nomor massa | 33 |
---|---|
nomor neutron | 21 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 92 ± 1,2 ms
|
Spin | 3/2 |
nuclear quadrupole moment | 0,13 ± 0,09
|
tanggal penemuan | 1979 |
parity | - |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 14% |
2n (2-neutron emission) |
Nomor massa | 34 |
---|---|
nomor neutron | 22 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 44,9 ± 0,4 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1979 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 21% |
2n (2-neutron emission) | 0.1% |
Nomor massa | 35 |
---|---|
nomor neutron | 23 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 11,3 ± 0,6 ms
|
Spin | 3/2 |
nuclear quadrupole moment | |
tanggal penemuan | 1989 |
parity | - |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 52% |
2n (2-neutron emission) |
Nomor massa | 36 |
---|---|
nomor neutron | 24 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 3,9 ± 1,3 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1989 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 48% |
2n (2-neutron emission) |
Nomor massa | 37 |
---|---|
nomor neutron | 25 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 8 ± 4 ms
|
Spin | 3/2 |
nuclear quadrupole moment | |
tanggal penemuan | 1996 |
parity | - |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
Nomor massa | 38 |
---|---|
nomor neutron | 26 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | |
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1997 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
Nomor massa | 39 |
---|---|
nomor neutron | 27 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | |
Spin | 7/2 |
nuclear quadrupole moment | |
tanggal penemuan | |
parity | - |
modus peluruhan | intensitas |
---|---|
n (neutron emission) | |
β− (β− decay) |
Nomor massa | 40 |
---|---|
nomor neutron | 28 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | |
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 2007 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
Nomor massa | 41 |
---|---|
nomor neutron | 29 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | |
Spin | 3/2 |
nuclear quadrupole moment | |
tanggal penemuan | |
parity | - |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) |
penemu atau pencipta | Sir Humphrey Davy |
---|---|
tempat penemuan | England |
tanggal penemuan | 1808 |
etimologi | From Magnesia ancient city in district of Thessaly, Greece. |
pelafalan | mag-NEE-zih-em (Inggris) |
1 | s | 0.3911 |
2 | p | 4.1742 |
2 | s | 4.608 |
3 | s | 8.6925 |