Nobelium Element (Periodic Table)

Nobelium

Nobelium (No) is a chemical element of the periodic table, located in the period 7, and has the atomic number 102. It is the fourteenth element in the actinide series. It is a silvery-white metal which is named after the Swedish chemist Alferd Nobel. It is the tenth transuranium element and is counted as one of the radioactive elements.

group
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
period
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
– f block

FAQs on Nobelium Element

Nobelium
‣ What does nobelium look like?

Appearance: silvery
‣ Who discovered nobelium and in what year?

Discovery: Joint Institute for Nuclear Research (1966)
‣ Where is nobelium on the periodic table?

Nobelium Periodic Table

Location: Nobelium is found in the seventh row of the periodic table, next to the mendelevium element.
‣ What is the atomic number of nobelium?

Atomic number (Z): 102
‣ What’s the symbol for nobelium?

Symbol: No
Nobelium atomic weight: [259]
‣ What block is nobelium in the periodic table?

Block: f-block
‣ What period is nobelium on the periodic table?

Period: 7
‣ What is the melting point of nobelium?

Melting point: 1100 K (827 °C, 1521 °F) (predicted)
‣ How many electron shells does nobelium have?

Electrons per shell: 2, 8, 18, 32, 32, 8, 2
‣ What is the electron configuration for nobelium?

Electron configuration: [Rn] 5f14 7s2
Nobelium ionization energies:
1st: 639 kJ/mol
2nd: 1254.3 kJ/mol
3rd: 2605.1 kJ/mol
‣ What is the phase of nobelium?

Phase (at r.t): solid (predicted)
Nobelium density (near r.t): 9.9 g/cm3 (predicted)
Nobelium natural occurrence: synthetic
Nobelium oxidation state: +2, +3
Nobelium electronegativity: Pauling scale: 1.3 (predicted)
Nobelium crystal structure: face-centered cubic (fcc) (predicted)
Nobelium CAS number: 10028-14-5

‣ How many isotopes does nobelium have?

Main isotopes of nobelium
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
253Nosyn1.6 min80 % α
20 % β+
249Fm
253Md
254Nosyn51 s90 % α
10 % β+
250Fm
254Md
255Nosyn3.1 min61 % α
39 % β+
251Fm
255Md
257Nosyn25 s99 % α
1 % β+
253Fm
257Md
259Nosyn58 min75 % α
25 % ε
<10 % SF
255Fm
259Md

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