Chemical Element #57: Lanthanum (La)

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Atomic Number: 57, Element Symbol: La, Element Name: Lanthanum, Atomic Mass: 138.9055 u.

Detailed Properties:

Atomic Number:	57
Element Symbol:	La
Element Name:	Lanthanum
Electron Configuration:	[Xe]6s²5d¹
Atomic Mass:	138.905500 u
Melting Point:	1191.00 K
Boiling Point:	3737.00 K

Stable Isotopes:

Isotope	Mass	Abundance
¹³⁸La	137.907115	0.000888
¹³⁹La	138.906356	0.999112

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2023-09-05, 1267👍, 0💬

Chemical Element #58: Cerium (Ce)
Atomic Number: 58, Element Symbol: Ce, Element Name: Cerium, Atomic Mass: 140.12 u. 2023-09-05, 1432🔥, 0💬

Chemical Element #59: Praseodymium (Pr)
Atomic Number: 59, Element Symbol: Pr, Element Name: Praseodymium, Atomic Mass: 140.9077 u. 2023-09-05, 1312🔥, 0💬

Chemical Element #62: Samarium (Sm)
Atomic Number: 62, Element Symbol: Sm, Element Name: Samarium, Atomic Mass: 150.4 u. 2023-09-05, 1310🔥, 0💬

Chemical Element #52: Tellurium (Te)
Atomic Number: 52, Element Symbol: Te, Element Name: Tellurium, Atomic Mass: 127.6 u. 2023-08-17, 1283🔥, 0💬

Chemical Element #57: Lanthanum (La)
Atomic Number: 57, Element Symbol: La, Element Name: Lanthanum, Atomic Mass: 138.9055 u. 2023-09-05, 1268🔥, 0💬

Chemical Element #55: Cesium (Cs)
Atomic Number: 55, Element Symbol: Cs, Element Name: Cesium, Atomic Mass: 132.9054520 u. 2023-09-05, 1261🔥, 0💬

Chemical Element #60: Neodymium (Nd)
Atomic Number: 60, Element Symbol: Nd, Element Name: Neodymium, Atomic Mass: 144.24 u. 2023-09-05, 1201🔥, 0💬

Chemical Element #61: Promethium (Pm)
Atomic Number: 61, Element Symbol: Pm, Element Name: Promethium, Atomic Mass: 144.91276 u. 2023-09-05, 979🔥, 0💬

Chemical Element #53: Iodine (I)
Atomic Number: 53, Element Symbol: I, Element Name: Iodine, Atomic Mass: 126.9045 u. 2023-08-17, 896🔥, 0💬

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