102 No Nobelium 259,0 u

Nobelium

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Periode
7
Golongan
—
Blok
f-blok
Fase (STP)
Solid

Nobelium is named after Alfred Nobel, inventor of dynamite. It is the only actinide that prefers the +2 oxidation state.

About Nobelium

A preference for the +2 oxidation state distinguishes nobelium from every other member of the actinide series, which otherwise favours the +3 state. The anomaly follows from the filled 5f subshell of its [Rn] 5f14 7s2 configuration, which is stable enough that the element gives up only its two 7s electrons in most reactions. Nobelium takes its name from Alfred Nobel, the inventor of dynamite, and holds atomic number 102 with a relative atomic mass of 259.0 and an electronegativity of 1.3. It is a solid under standard conditions. The element is synthetic, and its chemistry has been established through aqueous tracer studies conducted on vanishingly small samples.

Sifat Fisika

Massa Atom 259.0 u
Fase pada STP Solid

Sifat Elektronik

Keelektronegatifan 1.3

Konfigurasi Elektron

Konfigurasi [Rn] 5f¹⁴ 7s²

Electron Shell Configuration

Nobelium electron shell configuration No 2e⁻ 8e⁻ 18e⁻ 32e⁻ 32e⁻ 8e⁻ 2e⁻
Electron shell structure of Nobelium — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 32
6 (P) 8
7 (Q) 2

Position in Periodic Table

Nobelium position in the periodic table No

Blok & Periode

Blok

s p d f

Periode

1 2 3 4 5 6 7

Tabel Periodik

Lantanida Aktinida

Lebih banyak Aktinida

89 Ac Actinium 90 Th Thorium 91 Pa Protactinium 92 U Uranium 93 Np Neptunium 94 Pu Plutonium 95 Am Americium 96 Cm Curium 97 Bk Berkelium 98 Cf Californium

Frequently Asked Questions

What is Nobelium?
Nobelium (No) is a chemical element with atomic number 102. It is a solid at standard temperature and pressure, classified as a aktinida.
What are the key properties of Nobelium?
Nobelium has an atomic mass of 259.0 u.
What is the electron configuration of Nobelium?
The electron configuration of Nobelium is [Rn] 5f14 7s2. It is in the f-block of the periodic table.
What is the electronegativity of Nobelium?
Nobelium has an electronegativity of 1.3 on the Pauling scale.