Cadmium (Cd) — Transition metal. Atomic number 48.
Bluish-white metal
- Atomic number: 48
- Symbol: Cd
- Atomic mass: 112.41 u
- Category: Transition metal
- State: Solid
- Melting point: 321.05 °C / 594.2 K
- Boiling point: 766.85 °C / 1040 K
- Density: 8.65 g/cm³ (20°C)
- Electron configuration: [Kr] 4d10 5s2
- Oxidation states: +2
- Electronegativity: 1.69
- Discovered by: Friedrich Stromeyer (1817)
Common uses: Batteries, Pigments, Coatings
Biological role: No biological role.
Frequently Asked Questions about Cadmium
What is the atomic number of cadmium?
Cadmium has an atomic number of 48, meaning each atom contains 48 protons in its nucleus.
What is the atomic mass of cadmium?
The standard atomic weight of cadmium is 112.41 u (unified atomic mass units).
What category does cadmium belong to?
Cadmium is classified as a transition metal.
What is the state of cadmium at room temperature?
Cadmium is a solid at 20 °C (68 °F).
What is the melting point of cadmium?
The melting point of cadmium is 321.05 °C / 594.2 K.
What is the boiling point of cadmium?
The boiling point of cadmium is 766.85 °C / 1040 K.
What is the density of cadmium?
The density of cadmium is 8.65 g/cm³ (20°C).
What is the electronegativity of cadmium?
Cadmium has a Pauling electronegativity of 1.69.
What is the electron configuration of cadmium?
The electron configuration of cadmium is [Kr] 4d10 5s2.
What are the common oxidation states of cadmium?
Cadmium commonly exhibits the following oxidation states: +2.
When was cadmium discovered?
Cadmium was discovered in 1817 by Friedrich Stromeyer.
Is cadmium radioactive?
Cadmium is a stable element with no naturally occurring radioactive isotopes.
What is the biological role of cadmium?
No biological role.
What are the common uses of cadmium?
Cadmium is used for: Batteries; Pigments; Coatings.
