Chemical Element: Selenium
Properties:
Periodic Number: 34
Symbol: Se
Name: Selenium
Average Mass: 78.96 g/mol
Stable: yes
Density: 4.8
Boiling Point: 685.0°C
Melting Point: 221.0°C
Specific Heat: 0.3 J/(g*K)
Ionisation Potential: 9.8 eV
34
Se
78.96
Isotopes:
Name Neutrons Mass Abundance Spin Stable Half Life
87Se 53 86.92852 0 - no -
76Se 42 75.9192141 0.0937 - yes -
88Se 54 87.93142 0 - no -
90Se 56 89.93942 0 - no -
81Se 47 80.9179929 0 - no -
67Se 33 66.95009 0 - no -
78Se 44 77.9173095 0.2377 - yes -
75Se 41 74.9225236 0 - no -
86Se 52 85.924271 0 - no -
79Se 45 78.9184998 0 - no -
66Se 32 65.95521 0 - no -
92Se 58 91.94933 0 - no -
89Se 55 88.93602 0 - no -
69Se 35 68.93956 0 - no -
83Se 49 82.919119 0 - no -
77Se 43 76.9199146 0.0763 - yes -
82Se 48 81.9167 0.0873 - yes -
91Se 57 90.94537 0 - no -
71Se 37 70.93227 0 - no -
68Se 34 67.94187 0 - no -
73Se 39 72.926767 0 - no -
70Se 36 69.9335 0 - no -
74Se 40 73.9224766 0.0089 - yes -
85Se 51 84.92224 0 - no -
72Se 38 71.927112 0 - no -
84Se 50 83.918465 0 - no -
65Se 31 64.96466 0 - no -
80Se 46 79.9165218 0.4961 - yes -