111 Rg Roentgenium 282,0 u

Roentgenium

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Chu kỳ
7
Nhóm
11
Khối
d-khối
Pha (STP)
Solid

Roentgenium is named after Wilhelm Rontgen, the discoverer of X-rays. It is predicted to be a noble metal similar to gold.

About Roentgenium

Should roentgenium prove chemically similar to gold, as calculations suggest, it would be a noble metal at the foot of group 11. The element sits in period 7 with the configuration [Rn] 5f14 6d9 7s2, atomic number 111 and a relative atomic mass of 282.0, and is named for Wilhelm Rontgen, who discovered X-rays. Its electronegativity is undetermined and its properties are formally classed as unknown, since no chemical experiment has yet been performed on it. Relativistic contraction of the innermost orbitals is expected to be pronounced at this atomic number, and predictions of the element's behaviour depend heavily on how that contraction is modelled.

Tính chất vật lý

Khối lượng nguyên tử 282.0 u
Pha ở STP Solid

Cấu hình electron

Cấu hình [Rn] 5f¹⁴ 6d⁹ 7s²

Electron Shell Configuration

Roentgenium electron shell configuration Rg 2e⁻ 8e⁻ 18e⁻ 32e⁻ 32e⁻ 17e⁻ 2e⁻
Electron shell structure of Roentgenium — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 32
6 (P) 17
7 (Q) 2

Position in Periodic Table

Roentgenium position in the periodic table Rg

Khối & Chu kỳ

Khối

s p d f

Chu kỳ

1 2 3 4 5 6 7

Bảng tuần hoàn

Lanthanide Actinide

Thêm Tính Chất Chưa Xác Định

109 Mt Meitnerium 110 Ds Darmstadtium 112 Cn Copernicium 113 Nh Nihonium 114 Fl Flerovium 115 Mc Moscovium 116 Lv Livermorium 117 Ts Tennessine 118 Og Oganesson

Frequently Asked Questions

What is Roentgenium?
Roentgenium (Rg) is a chemical element with atomic number 111. It is a solid at standard temperature and pressure, classified as a tính chất chưa xác định.
What are the key properties of Roentgenium?
Roentgenium has an atomic mass of 282.0 u.
What is the electron configuration of Roentgenium?
The electron configuration of Roentgenium is [Rn] 5f14 6d9 7s2. It is in the d-block of the periodic table.