Statements (154)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:chemical_compound
|
| gptkbp:bfsLayer |
5
|
| gptkbp:bfsParent |
gptkb:Mendeleev's_Periodic_Table
gptkb:Philae's_APXS |
| gptkbp:category |
lanthanide
|
| gptkbp:color |
silvery white
|
| gptkbp:discovered_by |
gptkb:Carl_Gustaf_Mosander
|
| gptkbp:electronegativity |
1.2 (Pauling scale)
|
| https://www.w3.org/2000/01/rdf-schema#label |
erbium
|
| gptkbp:isotopes |
68
Er-162 Er-167 Er-168 Er-170 Er-171 Er-172 Er-173 Er-174 Er-175 Er-176 Er-177 Er-178 Er-179 Er-180 Er-181 Er-182 Er-183 Er-184 Er-185 Er-186 Er-187 Er-188 Er-189 Er-190 Er-191 Er-192 Er-193 Er-194 Er-195 Er-196 Er-197 Er-198 Er-199 Er-200 Er-201 Er-202 Er-203 Er-204 Er-205 Er-206 Er-207 Er-208 Er-209 Er-210 Er-211 Er-212 Er-213 Er-214 Er-215 Er-216 Er-217 Er-218 Er-219 Er-220 Er-221 Er-222 Er-223 Er-224 Er-225 Er-226 Er-227 Er-228 Er-229 Er-230 Er-231 Er-232 Er-233 Er-234 Er-235 Er-236 Er-237 Er-238 Er-239 Er-240 Er-241 Er-242 Er-243 Er-244 Er-245 Er-246 Er-247 Er-248 Er-249 Er-250 Er-251 Er-252 Er-253 Er-254 Er-255 Er-256 Er-257 Er-258 Er-259 Er-260 Er-261 Er-262 Er-263 Er-264 Er-265 Er-266 Er-267 Er-268 Er-269 Er-270 Er-271 Er-272 Er-273 Er-274 Er-275 Er-276 Er-277 Er-278 Er-279 Er-280 Er-281 Er-282 Er-283 Er-284 Er-285 Er-286 Er-287 Er-288 Er-289 Er-290 Er-291 Er-292 Er-293 Er-294 Er-295 Er-296 Er-297 Er-298 Er-299 Er-300 |
| gptkbp:melting_point |
1529 ° C
2510 ° C |
| gptkbp:occurs_in |
rare earth minerals
|
| gptkbp:population |
9.05 g/cm³
|
| gptkbp:social_structure |
+3
|
| gptkbp:symbol |
Er
|
| gptkbp:uses |
gptkb:railway_station
fiber optics lasers |
| gptkbp:year_created |
1843
|