Ta Tantalum – Element Information, Facts, Properties, Trends,Uses, Comparison with other elements

73
Ta
Tantalum

Tantalum

Element 73 of Periodic table is Tantalum with atomic number 73, atomic weight 180.9479. Tantalum, symbol Ta, has a Body Centered Cubic structure and Gray color. Tantalum is a transition metal element. Know everything about Tantalum Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure.

73 Ta - Tantalum | SchoolMyKids

Tantalum is a chemical element with symbol Ta and atomic number 73. Previously known as tantalium, its name comes from Tantalus, an antihero from Greek mythology. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant.

How to Locate Tantalum on Periodic Table

Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of electrons. The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and ends at bottom right (atomic number 118). Therefore you can directly look for atomic number 73 to find Tantalum on periodic table.

Another way to read periodic table and locate an element is by using group number (column) and period number (row). To locate Tantalum on periodic table look for cross section of group 5 and period 6 in the modern periodic table.

Table of Contents

Tantalum History

The element Tantalum was discovered by Anders Gustaf Ekeberg in year 1802 in Sweden . Tantalum derived its name from King Tantalus, father of Niobe from Greek mythology

Tantalum Presence: Abundance in Nature and Around Us

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

  Ppb by weight (1ppb =10^-7 %)
Abundance in Universe 8×10-9%
Abundance in Sun N/A
Abundance in Meteorites 2×10-6%
Abundance in Earth's Crust 1.7e-06
Abundance in Oceans 2×10-10%
Abundance in Humans N/A

Crystal Structure of Tantalum

The solid state structure of Tantalum is Body Centered Cubic.

The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in three dimensional space to form the structure.

Unit Cell Parameters

The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell edges Lattice Constants (a, b and c)

a b c
330.13 330.13 330.13 pm

and the angles between them Lattice Angles (alpha, beta and gamma).

alpha beta gamma
π/2 π/2 π/2

The positions of the atoms inside the unit cell are described by the set of atomic positions ( xi, yi, zi) measured from a reference lattice point.

The symmetry properties of the crystal are described by the concept of space groups. All possible symmetric arrangements of particles in three-dimensional space are described by the 230 space groups (219 distinct types, or 230 if chiral copies are considered distinct.

Space Group Name Im_ 3m 73 Ta Tantalum - Crystal Structure | SchoolMyKids
Space Group Number 229
Crystal Structure Body Centered Cubic

Tantalum Atomic and Orbital Properties

Tantalum atoms have 73 electrons and the electronic shell structure is [2, 8, 18, 32, 11, 2] with Atomic Term Symbol (Quantum Numbers) 4F3/2.

Atomic Number 73
Number of Electrons (with no charge) 73
Number of Protons 73
Mass Number 181
Number of Neutrons 108
Shell structure (Electrons per energy level) [2, 8, 18, 32, 11, 2]
Electron Configuration [Xe] 4f14 5d3 6s2
Valence Electrons 5d3 6s2
Oxidation State -3;-1
1;2;3;4;5
Atomic Term Symbol (Quantum Numbers) 4F3/2

Shell Structure of Tantalum - Electrons per energy level

73 Ta Tantalum - Electron Shell Structure | SchoolMyKids
n s p d f
1 K 2
2 L 2 6
3 M 2 6 10
4 N 2 6 10 14
5 O 2 6 3
6 P 2

Ground State Electronic Configuration of Tantalum - neutral Tantalum atom

The ground state electronic configuration of Neutral Tantalum atom is [Xe] 4f14 5d3 6s2. The portion of Tantalum configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [Xe]. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used.This is important as it is the Valence electrons 4f14 5d3 6s2, electrons in the outermost shell that determine the chemical properties of the element.

Unabbreviated electronic configuration of neutral Tantalum

Complete ground state electronic configuration for the Tantalum atom, Unabbreviated electronic configuration

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d3 6s2

Atomic Structure of Tantalum

Tantalum atomic radius is 200 pm, while it's covalent radius is 138 pm.

Atomic Radius

200 pm (2.0 Å)

Atomic Volume 10.8677417417 cm3
Covalent Radius 138 pm (1.38 Å)
Van der Waals Radius N/A
Neutron Cross Section 20.5 σa/barns

Atomic Spectrum of Tantalum

Atomic Spectrum of Tantalum | SchoolMyKids

Tantalum Chemical Properties: Tantalum Ionization Energies and electron affinity

The electron affinity of Tantalum is 31 kJ/mol

Valence 5
Electronegativity 1.5
ElectronAffinity 31 kJ/mol

Ionization Energy of Tantalum

Refer to table below for Ionization energies of Tantalum

Ionization energy number Enthalpy - kJ/mol
1 761
2 1.5×103

Tantalum Physical Properties

Refer to below table for Tantalum Physical Properties

Density 16.65 g/cm3
Molar Volume 10.8677417417 cm3

Elastic Properties

Young Modulus 186 GPa
Shear Modulus 69 GPa
Bulk Modulus 200 GPa
Poisson Ratio 0.34

Hardness of Tantalum - Tests to Measure of Hardness of Element

Mohs Hardness 6.5 MPa
Vickers Hardness 873 MPa
Brinell Hardness 800 MPa

Tantalum Electrical Properties

Tantalum is Conductor of electricity. Refer to table below for the Electrical properties of Tantalum

Electrical Conductivity 7.7×106 S/m
Resistivity 1.3×10-7 m Ω
Superconducting Point 4.47

Tantalum Heat and Conduction Properties

Thermal Conductivity 57 W/(m K)
Thermal Expansion 6.3×10-6 K-1

Tantalum Magnetic Properties

Magnetic Type Paramagnetic
Curie Point N/A
Mass Magnetic Susceptibility 1.07×10-8
Molar Magnetic Susceptibility 1.936×10-9
Volume Magnetic Susceptibility 0.0001782

Optical Properties of Tantalum

Refractive Index N/A

Acoustic Properties of Tantalum

Speed of Sound 3.4×103 m/s

Tantalum Thermal Properties - Enthalpies and thermodynamics

Refer to table below for Thermal properties of Tantalum

Melting Point 3290 K (3017 °C)
Boiling Point 5731 K (5458 °C)
Critical Temperature N/A
Superconducting Point 4.47

Enthalpies of Tantalum

Heat of Fusion 36 kJ/mol
Heat of Vaporization 735 kJ/mol
Heat of Combustion N/A

Tantalum Isotopes - Nuclear Properties of Tantalum

Isotopes of rhodium. Naturally occurring Tantalum has 1 stable isotope - 181Ta.

Isotope Isotope Mass % Abundance T half Decay Mode
155Ta  
156Ta  
157Ta  
158Ta  
159Ta  
160Ta  
161Ta  
162Ta  
163Ta  
164Ta  
165Ta  
166Ta  
167Ta  
168Ta  
169Ta  
170Ta  
171Ta  
172Ta  
173Ta  
174Ta  
175Ta  
176Ta  
177Ta  
178Ta  
179Ta  
180Ta  
181Ta   99.988% Stable N/A
182Ta  
183Ta  
184Ta  
185Ta  
186Ta  
187Ta  
188Ta  
189Ta  
190Ta  

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS Number CAS7440-25-7
RTECS Number RTECSWW5505000
DOT Hazard Class 4.1
DOT Numbers 3089
EU Number N/A
NFPA Fire Rating N/A
NFPA Hazards N/A
NFPA Health Rating N/A
NFPA Reactivity Rating N/A
Autoignition Point N/A
Flashpoint N/A

Database Search

List of unique identifiers to search the element in various chemical registry databases

Database Identifier number
CAS Number - Chemical Abstracts Service (CAS) CAS7440-25-7
CID Number CID23956
Gmelin Number N/A
NSC Number N/A
RTECS Number RTECSWW5505000

List of Elements
1 H - Hydrogen
2 He - Helium
3 Li - Lithium
4 Be - Beryllium
5 B - Boron
6 C - Carbon
7 N - Nitrogen
8 O - Oxygen
9 F - Fluorine
10 Ne - Neon
11 Na - Sodium
12 Mg - Magnesium
13 Al - Aluminium
14 Si - Silicon
15 P - Phosphorus
16 S - Sulfur
17 Cl - Chlorine
18 Ar - Argon
19 K - Potassium
20 Ca - Calcium
21 Sc - Scandium
22 Ti - Titanium
23 V - Vanadium
24 Cr - Chromium
25 Mn - Manganese
26 Fe - Iron
27 Co - Cobalt
28 Ni - Nickel
29 Cu - Copper
30 Zn - Zinc
31 Ga - Gallium
32 Ge - Germanium
33 As - Arsenic
34 Se - Selenium
35 Br - Bromine
36 Kr - Krypton
37 Rb - Rubidium
38 Sr - Strontium
39 Y - Yttrium
40 Zr - Zirconium
41 Nb - Niobium
42 Mo - Molybdenum
43 Tc - Technetium
44 Ru - Ruthenium
45 Rh - Rhodium
46 Pd - Palladium
47 Ag - Silver
48 Cd - Cadmium
49 In - Indium
50 Sn - Tin
51 Sb - Antimony
52 Te - Tellurium
53 I - Iodine
54 Xe - Xenon
55 Cs - Cesium
56 Ba - Barium
57 La - Lanthanum
58 Ce - Cerium
59 Pr - Praseodymium
60 Nd - Neodymium
61 Pm - Promethium
62 Sm - Samarium
63 Eu - Europium
64 Gd - Gadolinium
65 Tb - Terbium
66 Dy - Dysprosium
67 Ho - Holmium
68 Er - Erbium
69 Tm - Thulium
70 Yb - Ytterbium
71 Lu - Lutetium
72 Hf - Hafnium
73 Ta - Tantalum
74 W - Tungsten
75 Re - Rhenium
76 Os - Osmium
77 Ir - Iridium
78 Pt - Platinum
79 Au - Gold
80 Hg - Mercury
81 Tl - Thallium
82 Pb - Lead
83 Bi - Bismuth
84 Po - Polonium
85 At - Astatine
86 Rn - Radon
87 Fr - Francium
88 Ra - Radium
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
99 Es - Einsteinium
100 Fm - Fermium
101 Md - Mendelevium
102 No - Nobelium
103 Lr - Lawrencium
104 Rf - Rutherfordium
105 Db - Dubnium
106 Sg - Seaborgium
107 Bh - Bohrium
108 Hs - Hassium
109 Mt - Meitnerium
110 Ds - Darmstadtium
111 Rg - Roentgenium
112 Cn - Copernicium
113 Nh - Nihonium
114 Fl - Flerovium
115 Mc - Moscovium
116 Lv - Livermorium
117 Ts - Tennessine
118 Og - Oganesson
Metalloid
Nonmetals
Other Nonmetals
Halogens Noble Gas
Metals
Alkali Metals Alkaline Earth Metals
Transition Metals Post-Transition Metals
Lanthanide Actinide