Barium

aspect 56 of regular table is Barium v atomic number 56, atomic weight 137.327. Barium, price Ba, has a Body focused Cubic structure and also Silver color. Barium is a alkaline earth metal element. Trivial surname of Barium is alkaline planet metals*. Understand everything about Barium Facts, physics Properties, chemical Properties, electronic configuration, Atomic and Crystal Structure.


*

Barium is a chemical element with prize Ba and also atomic number 56. That is the fifth facet in group 2, a soft silvery metallic alkaline earth metal. Since of that is high chemical reactivity barium is never discovered in nature as a complimentary element.

You are watching: How many valence electrons in ba


Barium Facts

Read an essential information and also facts around element Barium

surname Barium
atomic Number 56
atom Symbol Ba
Atomic weight 137.327
step Solid
color Silver
Classification alkaline planet metal
group in periodic Table 2
Group Name beryllium household
period in periodic Table 6
Block in regular Table s-block
Electronic Configuration 6s2
Melting point 727 °C
Boiling point 1870 °C
Electronic shell Structure <2, 8, 18, 18, 8, 2>
CAS Number CAS7440-39-3

ar
37
Rb
38
Sr
39
Y
55
Cs
56
Ba
87
Fr
88
Ra
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
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
Lanthanides
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
Actinide
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

explore our interactive regular table


How to find Barium on regular Table

Periodic table is i ordered it by atomic number, variety of protons in the nucleus which is same as number of electrons. The atom number rises from left to right. Periodic table start at top left ( atom number 1) and also ends in ~ bottom appropriate (atomic number 118). As such you can directly look because that atomic number 56 to discover Barium on periodic table.

Another way to read routine table and also locate an element is by using group number (column) and period number (row). To locate Barium on periodic table look for cross ar of team 2 and period 6 in the modern-day periodic table.

explore Interactive periodic Table to Understand and Learn Cool patterns

Table of Contents


History
Abundance
Physical Properties
Thermal Properties
Crystal Structure
Atomic & orbit Properties
Chemical Properties
Isotopes
Health and Safety Parameters and Guidelines
Databases
Compare Barium with other elements

Barium History

The aspect Barium was discovered by Carl Wilhelm Scheele in year 1808 in uk . Barium derived its surname from the Greek barys, definition "heavy"

Barium Presence: abundance in Nature and Around Us

The table listed below shows the abundance of Barium in Universe, Sun, Meteorites, Earth"s Crust, Oceans and Human Body.

Ppb by load (1ppb =10^-7 %)
diversity in world 1×10-6%
diversity in sun 1×10-6%
variety in Meteorites 2.7e-06
Abundance in Earth"s late 0.00034
variety in oceans 3×10-6%
diversity in people 3e-07

Crystal framework of Barium

The solid state structure of Barium is Body focused Cubic.

The crystal structure have the right to be explained in regards to its unit Cell. The unit cells repeats chin in 3 dimensional an are to type the structure.

Unit cell Parameters

The unit cabinet is stood for in regards to its lattice parameters, which space the lengths of the cell edges Lattice Constants (a, b and c)

a b c
502.8 502.8 502.8 pm

and the angles in between them Lattice angle (alpha, beta and also gamma).

alpha beta gamma
π/2 π/2 π/2

The positions of the atoms within the unit cell are defined by the set of atomic positions ( xi, yi, zi) measured indigenous a recommendation lattice point.

The symmetry nature of the decision are explained by the principle of room groups. All possible symmetric arrangements of particles in three-dimensional room are explained by the 230 room groups (219 distinct types, or 230 if chiral duplicates are considered distinct.

room Group name Im_ 3m
*
an are Group Number 229
Crystal structure Body centered Cubic

Barium Atomic and also Orbital Properties

Barium atoms have 56 electrons and also the digital shell structure is <2, 8, 18, 18, 8, 2> with Atomic ax Symbol (Quantum Numbers) 1S0.


atom Number 56
Number of electron (with no charge) 56
Number that Protons 56
Mass Number 137
Number of Neutrons 81
Shell framework (Electrons per energy level) <2, 8, 18, 18, 8, 2>
Electron configuration 6s2
Valence Electrons 6s2
Oxidation State 1;2
Atomic hatchet Symbol (Quantum Numbers) 1S0

Shell framework of Barium - electrons per energy level


*

Ground State digital Configuration the Barium - neutral Barium atom

The ground state digital configuration of Neutral Barium atom is 6s2. The part of Barium configuration that is indistinguishable to the noble gas of the preceding period, is abbreviated as . For atoms with numerous electrons, this notation deserve to become prolonged and so an abbreviated notation is used.This is necessary as the is the Valence electrons 6s2, electrons in the outermost covering that determine the chemistry properties that the element.

See more: Item In Bathroom That Starts With O, Bathroom Vocabulary Word List

Unabbreviated electronic configuration that neutral Barium

Complete soil state digital configuration because that the Barium atom, Unabbreviated digital configuration

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 6s2

Atomic framework of Barium

Barium atom radius is 253 pm, if it"s covalent radius is 198 pm.

atomic Radius

253 afternoon (2.53 Å)

Atomic Volume 39.1245014245 cm3
Covalent Radius 198 pm (1.98 Å)
valve der Waals Radius N/A
ghost Cross section 1.3 σa/barns

Atomic Spectrum that Barium

*

Barium chemical Properties: Barium Ionization Energies and electron affinity

The electron affinity that Barium is 13.95 kJ/mol

Valence 2
Electronegativity 0.89
ElectronAffinity 13.95 kJ/mol

Ionization power of Barium

Refer to table below for Ionization energies the Barium

Ionization energy number Enthalpy - kJ/mol
1 502.9
2 965.2
3 3.6×103

Barium physics Properties

Refer to listed below table because that Barium physics Properties

density 3.51 g/cm3
Molar Volume 39.1245014245 cm3

Elastic Properties

Young Modulus 13 GPa
Shear Modulus 4.9 GPa
mass Modulus 9.6 GPa
Poisson proportion N/A

Hardness the Barium - tests to measure of Hardness that Element

Mohs Hardness 1.25 MPa
Vickers Hardness N/A
Brinell Hardness N/A

Barium electrical Properties

Barium is Conductor that electricity. Refer to table listed below for the electrical properties that Barium

electric Conductivity 2.9×106 S/m
Resistivity 3.5×10-7 m Ω
Superconducting allude N/A

Barium Heat and also Conduction Properties

heat Conductivity 18 W/(m K)
Thermal expansion 0.0000206 K-1

Barium Magnetic Properties

Magnetic kind Paramagnetic
Curie allude N/A
mass Magnetic Susceptibility 1.13×10-8
Molar Magnetic Susceptibility 1.552×10-9
Volume Magnetic Susceptibility 3.966e-05

Optical properties of Barium

Refractive table of contents N/A

Acoustic nature of Barium

rate of Sound 1620 m/s

Barium thermal Properties - Enthalpies and thermodynamics

Refer to table listed below for thermal properties of Barium

Melting suggest 1×103 K (727 °C)
Boiling allude 2143 K (1870 °C)
an important Temperature N/A
Superconducting point N/A

Enthalpies the Barium

heat of blend 8 kJ/mol
warm of Vaporization 140 kJ/mol
warm of burning N/A

Barium isotopes - nuclear Properties that Barium

Isotopes that rhodium. Naturally developing Barium has 7 steady isotope - 130Ba, 132Ba, 134Ba, 135Ba, 136Ba, 137Ba, 138Ba.


Isotope Isotope mass % abundance T half Decay mode
114Ba
115Ba
116Ba
117Ba
118Ba
119Ba
120Ba
121Ba
122Ba
123Ba
124Ba
125Ba
126Ba
127Ba
128Ba
129Ba
130Ba 0.106% stable N/A
131Ba
132Ba 0.101% secure N/A
133Ba
134Ba 2.417% secure N/A
135Ba 6.592% steady N/A
136Ba 7.854% stable N/A
137Ba 11.232% secure N/A
138Ba 71.698% secure N/A
139Ba
140Ba
141Ba
142Ba
143Ba
144Ba
145Ba
146Ba
147Ba
148Ba
149Ba
150Ba
151Ba
152Ba
153Ba

Regulatory and Health - Health and also Safety Parameters and also Guidelines

CAS Number CAS7440-39-3
RTECS Number RTECSCQ8370000
period Hazard course 4.3
period Numbers 1400
EU Number N/A
NFPA Fire Rating 1
NFPA hazards Water Reactive
NFPA health Rating 2
NFPA Reactivity Rating 2
Autoignition suggest N/A
Flashpoint N/A

Database Search

list of distinct identifiers to search the aspect in miscellaneous chemical registry databases

Database i would number
CAS Number - chemical Abstracts service (CAS) CAS7440-39-3
CID Number CID5355457
Gmelin Number N/A
NSC Number N/A
RTECS Number RTECSCQ8370000

Compare Barium through all Group 2 elements

Barium vs Beryllium Barium vs Magnesium Barium vs Calcium Barium vs Strontium Barium vs Radium

Compare Barium v all alkaline planet metal elements

Barium vs Beryllium Barium vs Magnesium Barium vs Calcium Barium vs Strontium Barium vs Radium