What is the atomic number of Radium?

The atomic number of Radium (Ra) is 88.

What is the atomic mass of Radium?

The atomic mass of Radium is 226.0 atomic mass units (u).

What group and period is Radium in?

Radium is in period 7, group 2 of the periodic table. It is a alkaline-earth element in the s-block.

How many valence electrons does Radium have?

Radium has 2 valence electron(s).

Radium (Ra) — Atomic Number 88 | Soren Periodic Table

Q: What is the electron configuration of Radium?

The electron configuration of Radium is [Rn] 7s2.

Radium (Ra) — Atomic Number 88Glows in dark, historically used in luminous paint.Radium Properties

Atomic Number: 88

Symbol: Ra

Atomic Mass: 226.0 u

Category: alkaline-earth

Group: 2

Period: 7

Block: s-block

Electron Configuration: [Rn] 7s2

Valence Electrons: 2

Electronegativity: 0.9

Ionization Energy: 509.3 kJ/mol

Electron Affinity: 9.6 kJ/mol

Atomic Radius: 215.0 pm

Melting Point: 973.0 K

Boiling Point: 2010.0 K

Radium in the Periodic TableRadium is a alkaline-earth element located in period 7, group 2 of the periodic table. It has the chemical symbol Ra and atomic number 88. The electron configuration of Radium is [Rn] 7s2, giving it 2 valence electron(s).Interactive Radium LearningExplore Radium 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.