What is the atomic number of Calcium?

The atomic number of Calcium (Ca) is 20.

What is the atomic mass of Calcium?

The atomic mass of Calcium is 40.078 atomic mass units (u).

What group and period is Calcium in?

Calcium is in period 4, group 2 of the periodic table. It is a alkaline-earth element in the s-block.

How many valence electrons does Calcium have?

Calcium has 2 valence electron(s).

Calcium (Ca) — Atomic Number 20 | Soren Periodic Table

Q: What is the electron configuration of Calcium?

The electron configuration of Calcium is [Ar] 4s2.

Calcium (Ca) — Atomic Number 20Bones, teeth, shells; key signaling ion.Calcium Properties

Atomic Number: 20

Symbol: Ca

Atomic Mass: 40.078 u

Category: alkaline-earth

Group: 2

Period: 4

Block: s-block

Electron Configuration: [Ar] 4s2

Valence Electrons: 2

Electronegativity: 1.0

Ionization Energy: 589.8 kJ/mol

Electron Affinity: 2.4 kJ/mol

Atomic Radius: 194.0 pm

Melting Point: 1115.0 K

Boiling Point: 1757.0 K

Calcium in the Periodic TableCalcium is a alkaline-earth element located in period 4, group 2 of the periodic table. It has the chemical symbol Ca and atomic number 20. The electron configuration of Calcium is [Ar] 4s2, giving it 2 valence electron(s).Interactive Calcium LearningExplore Calcium 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.