What is the atomic number of Neptunium?

The atomic number of Neptunium (Np) is 93.

What is the atomic mass of Neptunium?

The atomic mass of Neptunium is 237.0 atomic mass units (u).

What group and period is Neptunium in?

Neptunium is in period 7, group 0 of the periodic table. It is a actinide element in the f-block.

How many valence electrons does Neptunium have?

Neptunium has 3 valence electron(s).

Neptunium (Np) — Atomic Number 93

Q: What is the electron configuration of Neptunium?

The electron configuration of Neptunium is [Rn] 5f4 6d1 7s2.

Neptunium (Np) — Atomic Number 93First synthetic transuranium element.Neptunium Properties

Atomic Number: 93

Symbol: Np

Atomic Mass: 237.0 u

Category: actinide

Group: 0

Period: 7

Block: f-block

Electron Configuration: [Rn] 5f4 6d1 7s2

Valence Electrons: 3

Electronegativity: 1.36

Ionization Energy: 604.5 kJ/mol

Electron Affinity: 0.0 kJ/mol

Atomic Radius: 175.0 pm

Melting Point: 917.0 K

Boiling Point: 4273.0 K

Neptunium in the Periodic TableNeptunium is a actinide element located in period 7, group 0 of the periodic table. It has the chemical symbol Np and atomic number 93. The electron configuration of Neptunium is [Rn] 5f4 6d1 7s2, giving it 3 valence electron(s).Interactive Neptunium LearningExplore Neptunium 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.