Nomor atom | 2 |
---|---|
Massa atom | 4.002602 |
Nomor massa | 4 |
Golongan | 18 |
---|---|
Periode | 1 |
Blok | s |
Proton | 2 p+ |
---|---|
Neutron | 2 n0 |
Elektron | 2 e- |
Jari-Jari Atom | |
---|---|
Volume molar | |
Jari-jari kovalen | |
Metallic Radius | |
Jari-jari ion | |
Crystal Radius | |
Jari-jari van der Waals | |
kepadatan |
Energi | |
---|---|
proton affinity | |
Afinitas elektron | |
Energi ionisasi | |
Panas penguapan | |
kalor peleburan | |
Perubahan entalpi pembentukan standar | |
Elektron | |
kelopak elektron | 2 |
Elektron valensi | 2 ⓘ |
konfigurasi elektron | 1s2ⓘ |
bilangan oksidasi | |
elektronegativitas | |
Electrophilicity Index | |
kondisi dasar materi | |
fase zat | Gas |
gaseous state of matter | Monoatomic |
Titik didih | |
Titik lebur | |
critical pressure | |
critical temperature | |
Titik tripel | |
appearance | |
warna | Tak berwarna
|
appearance | colorless gas, exhibiting a red-orange glow when placed in a high-voltage electric field |
Indeks bias | 1,000035
|
thermodynamic material property | |
Kondusivitas termal | |
Pemuaian | |
molar heat capacity | |
Kapasitas kalor molar | |
heat capacity ratio | 5/3 |
electrical properties | |
tipe | |
konduktivitas listrik | |
resistivitas listrik | |
superkonduktivitas | |
magnetisme | |
tipe | diamagnetic |
Suseptibilitas magnetik batuan (Mass) | -0,0000000059 m³/Kg
|
Suseptibilitas magnetik batuan (Molar) | -0,0000000000236 m³/mol
|
Suseptibilitas magnetik batuan (Volume) | -0,00000000105
|
magnetic ordering | |
Curie temperature | |
Néel temperature | |
struktur | |
Struktur kristal | Kubik Berpusat-muka (HEX) |
Konstanta kisi | |
Lattice Angles | π/2, π/2, π/2 |
mechanical property | |
Kekerasan | |
Modulus kompresi | |
Modulus geser | |
modulus Young | |
Rasio Poisson | |
kecepatan suara | |
klasifikasi | |
Kategori | Gas mulia, Noble gases |
CAS Group | VIII |
IUPAC Group | VIIIA |
Glawe Number | 1 |
Mendeleev Number | 112 |
Pettifor Number | 1 |
Geochemical Class | volatile |
Klasifikasi Goldschmidt | atmophile |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
neutron cross section | 0,007
|
Neutron Mass Absorption | 0,00001
|
Bilangan kuantum | 1S0 |
Grup ruang | 225 (Fm_3m) |
Isotop stabil | 2 |
---|---|
Isotop tidak stabil | 6 |
Natural Isotopes | 2 |
Nomor massa | 3 |
---|---|
nomor neutron | 1 |
bobot atom | |
g-factor | -4,25525062 ± 0,00000006
|
natural abundance | 0,0002 ± 0,0002
|
peluruhan radioaktif | isotop stabil |
Waktu paruh | Not Radioactive ☢️ |
Spin | 1/2 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1934 |
parity | + |
Nomor massa | 4 |
---|---|
nomor neutron | 2 |
bobot atom | |
g-factor | 0
|
natural abundance | 99,9998 ± 0,0002
|
peluruhan radioaktif | isotop stabil |
Waktu paruh | Not Radioactive ☢️ |
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1908 |
parity | + |
Nomor massa | 5 |
---|---|
nomor neutron | 3 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 602 ± 22 ys
|
Spin | 3/2 |
nuclear quadrupole moment | |
tanggal penemuan | 1937 |
parity | - |
modus peluruhan | intensitas |
---|---|
n (neutron emission) | 100% |
Nomor massa | 6 |
---|---|
nomor neutron | 4 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 806,92 ± 0,24 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1936 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
β− d (β−-delayed deuteron emission) | 0.000278% |
Nomor massa | 7 |
---|---|
nomor neutron | 5 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 2,51 ± 0,07 zs
|
Spin | 3/2 |
nuclear quadrupole moment | |
tanggal penemuan | 1967 |
parity |
modus peluruhan | intensitas |
---|---|
n (neutron emission) | 100% |
Nomor massa | 8 |
---|---|
nomor neutron | 6 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 119,5 ± 1,5 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1965 |
parity | + |
modus peluruhan | intensitas |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 16% |
β− t (β−-delayed triton emission) | 0.9% |
Nomor massa | 9 |
---|---|
nomor neutron | 7 |
bobot atom | |
g-factor | |
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 2,5 ± 2,3 zs
|
Spin | 1/2 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1987 |
parity |
modus peluruhan | intensitas |
---|---|
n (neutron emission) | 100% |
Nomor massa | 10 |
---|---|
nomor neutron | 8 |
bobot atom | |
g-factor | 0
|
natural abundance | |
peluruhan radioaktif | ☢️ radioactive element |
Waktu paruh | 260 ± 40 ys
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tanggal penemuan | 1994 |
parity | + |
modus peluruhan | intensitas |
---|---|
2n (2-neutron emission) | 100% |
penemu atau pencipta | Sir William Ramsey, Nils Langet, P.T.Cleve |
---|---|
tempat penemuan | Scotland/Sweden |
tanggal penemuan | 1895 |
etimologi | Greek: hêlios (sun). |
pelafalan | HEE-li-em (Inggris) |
Kelimpahan alami | |
---|---|
Kelimpahan di kerak bumi | |
natural abundance (samudra) | |
natural abundance (tubuh manusia) | |
natural abundance (Meteoroid) | |
natural abundance (matahari) | 23 %
|
Kelimpahan di alam semesta | 23 %
|
1 | s | 0.3125 |