Bohrium

Element 107 · Transition metal

Specimen

Atomic number: 107
Atomic mass: 270.133
State at room temperature: Solid
Melting point: Unknown
Boiling point: Unknown
Density: Unknown
Discovered: 1976

Physical data from PubChem.¹

Can I eat it?

In food and water: Never made in amounts you could eat. Only a few atoms of bohrium have ever been made. It will probably never exist in an amount large enough to see. ²

The atom

Shell	Electrons
1 (K)	2
2 (L)	8
3 (M)	18
4 (N)	32
5 (O)	32
6 (P)	13
7 (Q) outermost	2
Total	107

Configuration [Rn] 5f¹⁴ 6d⁵ 7s²

5f ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓

6d ↑ ↑ ↑ ↑ ↑

7s ↑ ↓

A shell diagram: each ring is an electron shell and each dot is one electron. The nucleus holds 107 protons. The outermost shell is shown in red. Electrons do not travel on rings: they fill orbitals, regions where an electron is likely to be found. The boxes are those orbitals for the electrons outside the Rn core, with one arrow per electron. This configuration is a prediction; it has not been measured.

Related elements

Sources

1

National Center for Biotechnology Information (PubChem), 2026. Periodic Table of Elements .

Atomic mass, electron configuration, melting and boiling points, density and discovery year for all 118 elements.
2
Royal Society of Chemistry, Periodic Table, 2026. Bohrium - Element information, properties and uses .

Reference page; its Biological role and Natural abundance sections are quoted.
- Bohrium does not occur naturally and only a few atoms have ever been made. It will probably never be isolated in observable quantities.

Specimen

Can I eat it?

The atom

Related elements

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Sources