What is the atomic number of Nihonium?

Nihonium has atomic number 113, which means a neutral atom has 113 protons and 113 electrons.

What is the chemical symbol for Nihonium?

The chemical symbol for Nihonium is Nh.

What category is Nihonium in?

Nihonium is classified as a unknown classification and sits in period 7 of the periodic table.

Element 113

Nihonium (Nh)

Nihonium is a chemical element with symbol Nh and atomic number 113. It is named after Japan (Nihon in Japanese). As a synthetic element, it can be created in a laboratory but is not found in nature.

Atomic Number

113

Atomic Mass

286 u

Period

Group

Group 13: boron group

Phase

Predicted solid

Density

~16.0 (predicted) g/cm3

Electron Shells

2, 8, 18, 32, 32, 18, 3

Atomic Structure

Protons: 113. Electrons: 113. Neutrons: Varies by isotope.

Electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d¹⁰ 7p¹

Why Nihonium Matters

Nihonium helps connect atomic number 113, unknown classification behavior, period 7 trends, and electron shell structure. Its Predicted solid phase, atomic mass of 286 u, and electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d¹⁰ 7p¹ make it useful for comparing bonding patterns across the periodic table.

Discovery and Occurrence

Nihonium was discovered 2004 by Kosuke Morita and the RIKEN team. Nihonium is a chemical element with symbol Nh and atomic number 113. It is named after Japan (Nihon in Japanese). As a synthetic element, it can be created in a laboratory but is not found in nature.

Safety and Handling Context

Nihonium has radioactive isotopes or is commonly discussed with radioactive materials. Use this page as an educational reference; real samples require qualified supervision and controlled handling.

Related Elements

Frequently Asked Questions

What is the atomic number of Nihonium?: Nihonium has atomic number 113, which means a neutral atom has 113 protons and 113 electrons.
What is the chemical symbol for Nihonium?: The chemical symbol for Nihonium is Nh.
What category is Nihonium in?: Nihonium is classified as a unknown classification and sits in period 7 of the periodic table.

Explore Nihonium in 3D

Use the interactive table above to rotate atomic models, compare periodic trends, and move from Nihonium to neighboring elements without losing your place.