erbium /er·bi·um/ (Er) (er´be-um) chemical element (see Table of Elements ), at. no. 68.
erbium (Er)
erbium (Er) [er´be-um]
erbium (Er)
er·bi·um (ûr b - m)n. Symbol Er A soft rare-earth element, used in metallurgy and nuclear research. Atomic number 68. |
erbium (Er)
[ur′bē·əm]
Etymology: Ytterby, Sweden
a metallic rare earth element. Its atomic number is 68, and its atomic mass is 167.26.
erbium (Er) [er´be-um]
a chemical element, atomic number 68, atomic weight 167.26. (See Appendix 6.)
erbium (Er)
(ur´bē
m),
n a rare earth, metallic element with an atomic number of 68 and an atomic weight of 167.26.
m), n a rare earth, metallic element with an atomic number of 68 and an atomic weight of 167.26.
erbium
a chemical element, atomic number 68, atomic weight 167.26, symbol Er. See Table 6.
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