Chemical Element #34: Selenium (Se)

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Atomic Number: 34, Element Symbol: Se, Element Name: Selenium, Atomic Mass: 78.97 u.

Detailed Properties:

Atomic Number:	34
Element Symbol:	Se
Element Name:	Selenium
Electron Configuration:	[Ar]4s²3d¹⁰4p⁴
Atomic Mass:	78.970000 u
Melting Point:	493.65 K
Boiling Point:	958.00 K

Stable Isotopes:

Isotope	Mass	Abundance
⁷⁴Se	73.922476	0.008900
⁷⁶Se	75.919214	0.093700
⁷⁷Se	76.919914	0.076300
⁷⁸Se	77.917309	0.237700
⁸⁰Se	79.916522	0.496100
⁸²Se	81.916700	0.087300

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2022-11-19, 267👍, 0💬

Chemical Element #38: Strontium (Sr)
Atomic Number: 38, Element Symbol: Sr, Element Name: Strontium, Atomic Mass: 87.6 u. 2023-08-17, 234🔥, 0💬

Chemical Element #32: Germanium (Ge)
Atomic Number: 32, Element Symbol: Ge, Element Name: Germanium, Atomic Mass: 72.63 u. 2023-08-17, 229🔥, 0💬

Chemical Element #37: Rubidium (Rb)
Atomic Number: 37, Element Symbol: Rb, Element Name: Rubidium, Atomic Mass: 85.468 u. 2023-08-17, 224🔥, 0💬

Chemical Element #30: Zinc (Zn)
Atomic Number: 30, Element Symbol: Zn, Element Name: Zinc, Atomic Mass: 65.4 u. 2023-08-17, 216🔥, 0💬

Chemical Element #33: Arsenic (As)
Atomic Number: 33, Element Symbol: As, Element Name: Arsenic, Atomic Mass: 74.92159 u. 2022-11-19, 205🔥, 0💬

Chemical Element #36: Krypton (Kr)
Atomic Number: 36, Element Symbol: Kr, Element Name: Krypton, Atomic Mass: 83.80 u. 2023-08-17, 202🔥, 0💬

Chemical Element #35: Bromine (Br)
Atomic Number: 35, Element Symbol: Br, Element Name: Bromine, Atomic Mass: 79.90 u. 2023-08-17, 197🔥, 0💬

Chemical Element #29: Copper (Cu)
Atomic Number: 29, Element Symbol: Cu, Element Name: Copper, Atomic Mass: 63.55 u. 2023-08-17, 193🔥, 0💬

Chemical Element #39: Yttrium (Y)
Atomic Number: 39, Element Symbol: Y, Element Name: Yttrium, Atomic Mass: 88.9058 u. 2023-08-17, 193🔥, 0💬

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