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Nihonium (Nh) – Element 113 of the periodic table

Nihonium (symbol Nh) is element number 113 of the periodic table and belongs to the “Metal” category. Its atomic mass is about 286, and its phase under standard conditions is Solid (a theoretical prediction). This element sits in period 7 and group 13 of the periodic table, and its electrons are arranged in shells of 2, 8, 18, 32, 32, 18, 3. The short electron configuration of Nihonium is [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹. Known uses of Nihonium include Scientific research.

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Nihonium is a radioactive, mostly synthetic element; its data may be based on limited experiments or theoretical prediction.

Properties of Nihonium

Atomic number
113
Chemical symbol
Nh
Atomic mass
286
Category
Metal
Period
7
Group
13
Phase
Solid (a theoretical prediction)
Protons
113
Electrons
113
Neutrons (approx.)
173
Electron shells
2, 8, 18, 32, 32, 18, 3
Outer-shell electrons
3
Discovered
RIKEN Institute (2004)

Electron configuration of Nihonium

The electron configuration of Nihonium (Nh), with 113 electrons, is shown below. The last shell (shell 7) is highlighted:

Full configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d¹⁰ 7s² 7p¹
Short configuration
[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹
Last shell
7s² 7p¹

This synthetic element’s electron configuration is a theoretical prediction.

What is electron configuration and how is it written?

Electron shells of Nihonium

Distribution of 113 electrons of Nihonium across shells K to Q:

  1. K2
  2. L8
  3. M18
  4. N32
  5. O32
  6. P18
  7. Q3

What is a metal?

The p-block metals (the post-transition metals) are usually softer than the transition metals and have lower melting points.

Uses of Nihonium

Frequently asked questions about Nihonium

What is the atomic number of Nihonium?

The atomic number of Nihonium (Nh) is 113; that is, every atom of it has 113 protons.

What is the electron configuration of Nihonium?

The electron configuration of Nihonium (Nh) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d¹⁰ 7s² 7p¹; in short form it is [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹, and its last shell is 7s² 7p¹.

What is the chemical symbol of Nihonium?

The chemical symbol of Nihonium is Nh.

Where is Nihonium located in the periodic table?

Nihonium is located in period 7 and group 13 and belongs to the “Metal” category.

What is the atomic mass of Nihonium?

The atomic mass of Nihonium is about 286 (atomic mass units).

What is the phase of Nihonium under normal conditions?

The phase of Nihonium under standard conditions is Solid (a theoretical prediction).

What are the uses of Nihonium?

Uses of Nihonium include Scientific research.

Who discovered Nihonium?

Nihonium was discovered by RIKEN Institute in 2004.

Elements in the same category as Nihonium (Metal)

Aluminum (Al)Gallium (Ga)Indium (In)Tin (Sn)Thallium (Tl)Lead (Pb)Bismuth (Bi)Polonium (Po)Flerovium (Fl)Moscovium (Mc)Livermorium (Lv)

See all Post-transition metals

Nihonium’s group 13 neighbours

Boron (B)Aluminum (Al)Gallium (Ga)Indium (In)Thallium (Tl)

Group 13 of the periodic table