What is the atomic number of Cobalt?

The atomic number of Cobalt (Co) is 27.

What is the atomic mass of Cobalt?

The atomic mass of Cobalt is 58.933 atomic mass units (u).

What group and period is Cobalt in?

Cobalt is in period 4, group 9 of the periodic table. It is a transition element in the d-block.

How many valence electrons does Cobalt have?

Cobalt has 11 valence electron(s).

Cobalt (Co) — Atomic Number 27 | Soren Periodic Table

Q: What is the electron configuration of Cobalt?

The electron configuration of Cobalt is [Ar] 3d7 4s2.

Cobalt (Co) — Atomic Number 27Core of vitamin B12, blue pigment in glass.Cobalt Properties

Atomic Number: 27

Symbol: Co

Atomic Mass: 58.933 u

Category: transition

Group: 9

Period: 4

Block: d-block

Electron Configuration: [Ar] 3d7 4s2

Valence Electrons: 11

Electronegativity: 1.88

Ionization Energy: 760.4 kJ/mol

Electron Affinity: 63.7 kJ/mol

Atomic Radius: 152.0 pm

Melting Point: 1768.0 K

Boiling Point: 3200.0 K

Cobalt in the Periodic TableCobalt is a transition element located in period 4, group 9 of the periodic table. It has the chemical symbol Co and atomic number 27. The electron configuration of Cobalt is [Ar] 3d7 4s2, giving it 11 valence electron(s).Interactive Cobalt LearningExplore Cobalt in interactive 3D with the Soren Periodic Table. View Bohr model, quantum orbital model, nucleus inspector, and phase lab with temperature and pressure controls. Includes fun facts, real-world uses, and NCTB curriculum integration for Bangladeshi students.