57 La Lanthanum 138.91 u

Lanthanum

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周期
6
族
—
ブロック
f-ブロック
相 (STP)
Solid

Lanthanum is the first element in the lanthanide series. It is used in camera lenses, catalysts, and battery electrodes.

物理的特性

原子質量 138.91 u
STPにおける相 Solid

電子的特性

電気陰性度 1.1

電子配置

配置 [Xe] 5d¹ 6s²

Electron Shell Configuration

Lanthanum electron shell configuration La 2e⁻ 8e⁻ 18e⁻ 18e⁻ 9e⁻ 2e⁻

Position in Periodic Table

Lanthanum position in the periodic table La

ブロックと周期

ブロック

s p d f

周期

1 2 3 4 5 6 7

周期表

ランタノイド アクチノイド

Compounds Containing Lanthanum

Lanthanum Oxide

La₂O₃

ランタノイド をもっと見る

58 Ce Cerium 59 Pr Praseodymium 60 Nd Neodymium 61 Pm Promethium 62 Sm Samarium 63 Eu Europium 64 Gd Gadolinium 65 Tb Terbium 66 Dy Dysprosium 67 Ho Holmium

Frequently Asked Questions

What is Lanthanum?
Lanthanum (La) is a chemical element with atomic number 57. It is a solid at standard temperature and pressure, classified as a ランタノイド.
What are the key properties of Lanthanum?
Lanthanum has an atomic mass of 138.91 u.
What is the electron configuration of Lanthanum?
The electron configuration of Lanthanum is [Xe] 5d1 6s2. It is in the f-block of the periodic table.
What is the electronegativity of Lanthanum?
Lanthanum has an electronegativity of 1.1 on the Pauling scale.