30 Zn Zinc 65,38 u

Zinc

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Chu kỳ
4
Nhóm
12
Khối
d-khối
Pha (STP)
Solid

Zinc is an essential trace element for all living organisms. It is widely used in galvanizing steel and in zinc-carbon batteries.

Ngoại quan: Silver-gray

About Zinc

Widely used to protect steel from rust through galvanizing, zinc is a silver-gray transition metal of atomic number 30 and atomic mass 65.38. It has a density of 7.13 g/cm³ and a relatively low melting point of 693 K. Its [Ar] 3d10 4s2 configuration gives an electronegativity of 1.65 and a first ionization energy of 906 kJ/mol. Andreas Marggraf isolated the metal in 1746. Besides its protective coatings, zinc is used in zinc-carbon batteries and is an essential trace element for all living organisms. It rounds out the first transition series in group 12, period 4.

Tính chất vật lý

Khối lượng nguyên tử 65.38 u
Mật độ 7.134 g/cm³
Điểm nóng chảy 419.5 °C
Điểm sôi 906.9 °C
Pha ở STP Solid
Bán kính nguyên tử 142.0 pm

Tính chất điện tử

Độ âm điện 1.65
Năng lượng ion hóa 906.4 eV
Electron hóa trị 12

Cấu hình electron

Cấu hình [Ar] 3d¹⁰ 4s²

Electron Shell Configuration

Zinc electron shell configuration Zn 2e⁻ 8e⁻ 18e⁻ 2e⁻
Electron shell structure of Zinc — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 2

Position in Periodic Table

Zinc position in the periodic table Zn

Khám phá

Được phát hiện bởi: Andreas Marggraf
Năm: 1746

Khối & Chu kỳ

Khối

s p d f

Chu kỳ

1 2 3 4 5 6 7

Bảng tuần hoàn

Lanthanide Actinide

Các phản ứng có Zn

Daniell Cell (Zinc-Copper Galvanic Cell)

Zn + Cu²⁺ → Zn²⁺ + Cu

Electrochemical

Zinc and Copper Sulfate Displacement

Zn + CuSO₄ → ZnSO₄ + Cu

Redox

Zinc Displacing Copper from Copper Sulfate

Zn + CuSO₄ → ZnSO₄ + Cu

Single Replacement

Zinc Reacting with Hydrochloric Acid

Zn + 2HCl → ZnCl₂ + H₂

Single Replacement

Zinc Reacting with Sulfuric Acid

Zn + H₂SO₄ → ZnSO₄ + H₂

Single Replacement
Xem tất cả 14 phản ứng →

Compounds Containing Zinc

Zinc Sulfate

ZnSO₄

Zinc Chloride

ZnCl₂

Zinc Sulfide

ZnS

Zinc Oxide

ZnO

Thêm Kim Loại Chuyển Tiếp

21 Sc Scandium 22 Ti Titanium 23 V Vanadium 24 Cr Chromium 25 Mn Manganese 26 Fe Iron 27 Co Cobalt 28 Ni Nickel 29 Cu Copper 39 Y Yttrium

Explore on Science FYI

AlloyFYI
Aluminum 7075

Zinc is the primary strengthening element in 7075

Frequently Asked Questions

What is Zinc?
Zinc (Zn) is a chemical element with atomic number 30. It is a solid at standard temperature and pressure, classified as a kim loại chuyển tiếp.
What are the key properties of Zinc?
Zinc has an atomic mass of 65.38 u, density of 7.134 g/cm³, melting point of 419.5°C, boiling point of 906.9°C.
What is the electron configuration of Zinc?
The electron configuration of Zinc is [Ar] 3d10 4s2. It is in the d-block of the periodic table.
Who discovered Zinc?
Zinc was discovered by Andreas Marggraf in 1746.
What is the electronegativity of Zinc?
Zinc has an electronegativity of 1.65 on the Pauling scale.