Elements of the periodic table

Elements of the periodic table

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Nd (neodymium)

Tab. 1: Neodymium

Name of the element:	Neodymium
Latin name:	Neodymium
English name:	Neodymium
French name:	Néodyme
Symbol:	Nd
Atomic number:	60
Condition at 25 $° C$ :	solid, metal
Frequency (in $ppm$ ):	38
Discovered by:	from Welsbach (1885)
Electron configuration:	$[Xe] 4 f^{4} 6 s^{2}$
Oxidation states:	+3
Relative atomic mass:	144.24
Electronegativity:	1.14 (Pauling) 1.07 (Allred)
Atomic radius (in $pm$ ):	182.1
Ionization energy (in $eV {atom}^{-1}$ ):	5.49
Density (in $kg m^{-3}$ ):	7007
Melting temperature (in $K$ ):	1294
Boiling temperature (in $K$ ):	3341

Tab. 2: Isotopes of neodymium

Mass number	Atomic mass	Frequency /%	Nuclear spin
$142$	$141.9077$	$27.13$	$0$
$143$	$142.9098$	$12.18$	$+ \frac{7}{2}$
$144^{*}$	$143.9101$	$23.80$	$0$
$145$	$144.9126$	$8.30$	$- \frac{7}{2}$
$146$	$145.9131$	$17.19$	$0$
$147^{*}$	$146.9169$	$0$	$0$
$148$	$147.9169$	$5.76$	$0$
$150$	$149.9209$	$5.64$	$0$

$^{*}$ Isotope is not stable and decays

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