Last Updated：2025/12/20
Sentence
At
a
meeting
of
the
Russian
Chemical
Society
held
October
20,
1881
(and
reported
in
the
Bulletin
de
la
Société
Chimique
de
Paris,
for
August,
1882),
Mendelejeff
[Dmitri
Mendeleev],
the
distinguished
author
of
the
periodic
law,
remarked
that
only
two
of
the
recently
announced
elements—scandium
and
ytterbium—had
been
satisfactorily
confirmed.
These
have
been
obtained
in
a
pure
state
by
[Lars
Fredrik]
Nilson,
and
neither
of
them
has
absorption
spectra.
Quizzes for review
At a meeting of the Russian Chemical Society held October 20, 1881 (and reported in the Bulletin de la Société Chimique de Paris, for August, 1882), Mendelejeff [Dmitri Mendeleev], the distinguished author of the periodic law, remarked that only two of the recently announced elements—scandium and ytterbium—had been satisfactorily confirmed. These have been obtained in a pure state by [Lars Fredrik] Nilson, and neither of them has absorption spectra.
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
