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Elementbox_header bingo jon bingo number68 symbolEr nameerbium leftholmium rightthulium above- belowfermium color1#ffbfff color2black Elementbox_series lanthanides Elementbox_groupperiodblock group? period6 blockf Elementbox_appearance_img Er,68 silvery white Elementbox_atomicmass_gpm 1 E-25 kg Elementbox_econfig [xenon 4f¹² 6s²

Elementbox_epershell 2, 8, 18, 30, 8, 2 Elementbox_section_physicalprop color1#ffbfff color2black Elementbox_phase solid bingo Elementbox_density_gpcm3nrt 9.066 Elementbox_densityliq_gpcm3mp 8.86 Elementbox_meltingpoint k1770 c1497 f2727 Elementbox_boilingpoint k3141 c2868 f5194 Elementbox_heatfusion_kjpmol 19.90 Elementbox_heatvaporiz_kjpmol 280 Elementbox_heatcapacity_jpmolkat25 28.12 Elementbox_vaporpressure_katpa 1504 1663 comment Elementbox_section_atomicprop color1#ffbfff color2black Elementbox_crystalstruct jon bingo hexagonal Elementbox_oxistates 3
oxide) Elementbox_electroneg_pauling

1.24 Elementbox_ionizationenergies4 bingo 589.3 jon bingo 1150 2194 Elementbox_atomicradius_pm 1 E-10 m Elementbox_atomicradiuscalc_pm 1 E-10 m Elementbox_section_miscellaneous color1#ffbfff color2black Elementbox_magnetic no data Elementbox_eresist_ohmm 0.860 µElementbox_thermalcond_wpmkat300k 14.5 Elementbox_thermalexpansion_umpmk
12.2 Elementbox_speedofsound_rodmpsat20 2830 Elementbox_youngsmodulus_gpa 69.9 Elementbox_shearmodulus_gpa 28.3 Elementbox_bulkmodulus_gpa 44.4 Elementbox_poissonratio 0.237

Elementbox_vickershardness_mpa 589 Elementbox_brinellhardness_mpa 814 Elementbox_cas_number 7440-52-0 Elementbox_isotopes_begin isotopesoferbium color1#ffbfff color2black Elementbox_isotopes_decay mn160 symEr nasynthetic radioisotope hl1 E5 s h dmelectron capture de0.330 pn160 psholmium Elementbox_isotopes_stable mn162 symEr na0.14% n94 Elementbox_isotopes_stable

mn164 symEr na1.61% n96 Elementbox_isotopes_decay mn165 symEr nasynthetic radioisotope hl1 E4 s h dmelectron capture de0.376 pn165 psholmium Elementbox_isotopes_stable mn166 symEr na33.6% n98 Elementbox_isotopes_stable mn167 symEr na22.95% n99 Elementbox_isotopes_stable mn168 symEr na26.8% n100 Elementbox_isotopes_decay mn169 symEr nasynthetic radioisotope hl9.4 day dmbeta emission de0.351 pn169 psthulium Elementbox_isotopes_stable mn170 symEr na14.9% n102 Elementbox_isotopes_decay

mn171 symEr nasynthetic radioisotope hl7.516 hour dmbeta emission de1.490 pn171 psthulium Elementbox_isotopes_decay mn172 symEr nasynthetic radioisotope hl49.3 hour dmbeta emission de0.891 pn172 psthulium Elementbox_isotopes_endElementbox_footer color1#ffbfff color2black Erbium is a chemical element in the periodic table that has the symbol Er and atomic number 68. A rare silvery metallic lanthanide rare

earth element, erbium bingo is associated with several other rare elements in the mineral gadolinite from Ytterby in Sweden. Notable characteristics A trivalent element, pure erbium metal is malleable, soft, somewhat stable in air and does not oxidation as quickly as some other rare-earth metals. Its salts are rose-colored and the bingo element gives a characteristic sharp absorption spectra in visible light, ultraviolet, and near infrared. Otherwise it looks much like the other rare earths. Its sesquioxide

is called erbia. Erbiums properties are to a degree dictated by the kind and amount of impurities present. Erbium does not play any known biological role but is thought by some to be able to stimulate jon bingo metabolism. Applications Erbiums everyday uses are varied; commonly it is used as a photographic filter and because of its resilience it is useful as an metallurgical additive. Other uses:Used as a dopant in Fiber amplifiers.Erbium oxide has a pink color and is therefore sometimes used as a glass and porcelain enamel glaze colorant. The glass is then often used in sunglasses and cheap jewelry. History Erbium was

discovery of the chemical elements by Carl Gustaf Mosander in 1843. Mosander separated "yttria" from the mineral gadolinite into three fractions which he called yttria, erbia, and terbia. He named the new element after the town of Ytterby where large concentrations of yttria and erbium are located. Erbia and terbia, however, were confused in at this time. After 1860, what had been known as terbia was renamed erbia and after 1877 what had been known as erbia was renamed terbia. Fairly pure Er₂oxygen was independently

isolated in 1905 by Georges Urbain and Charles James. Reasonably pure metal wasnt produced until 1934 when workers reduced the anhydrous chloride with potassium vapor. Occurrence Like other rare earths, this element is never found as a free element in nature but is found bound monazite sand ores. It has historically been very difficult and expensive to separate rare earths from each other in their ores but ion-exchange production techniques developed in the late 20th century have greatly brought down the cost of production of all rare-earth metals and their chemical compounds. The principal commercial sources

of erbium are from the minerals xenotime and euxenite. Metallic erbium in dust form presents a fire and explosion hazard. Isotopes Naturally occurring erbium is composed of 6 stable isotopes, Er-162, Er-164, Er-166, Er-167, Er-168, and Er-170 with Er-166 being the most abundant . 23 radioisotopes have been characterized, with the most stable being Er-169 with a half life of 9.4 days, Er-172 with a half-life of 49.3 hours, Er-160 with a half-life of 28.58 hours, Er-165 with a half-life of 10.36 hours, and Er-171 with a half life of 7.516 hours. All of the remaining bingo radioactive isotopes have half-lifes that

are less than 3.5 hours, and jon bingo the majority of these have half lifes that are less than 4 minutes. This element also has 6 meta states, with the most stable being Er-167m .The isotopes of erbium range in atomic weight from 144.957 atomic mass unit to 173.944 amu . The primary decay mode before the most abundant stable isotope, Er-166, is electron capture, and the primary mode after is beta decay. The primary decay products before Er-166 are element 67 isotopes, and the primary products after are element 69 isotopes. Precautions

As with the other lanthanides, erbium compounds are of low to moderate toxicity, although their toxicity has not been investigated in detail. References Guide to the Elements – Revised Edition, Albert Stwertka, ISBN 0-19-508083-1 WebElements.com – Erbium Chemical elementsLanthanidesca:Erbide:Erbiumet:Erbiumes:Erbioeo:Erbiofr:Erbiumko:??it:Erbiohe:??????nl:Erbiumja:?????pl:Erbpt:Érbioru:?????sl:Erbijsr:???????fi:Erbiumsv:Erbiumuk:?????zh:?