s-t-g https://blog.hatena.ne.jp/s-t-g/ scientia-porta https://scientia-porta.com/ ランタノイド系(第3族) 第6周期 [Lu ルテチウム] [原子番号 71] [分類 ランタノイド] [質量 175.0 AMU] [直径 3.48 Å] [電子 (2,8,18,32,9,2)] [量 地表付近の0.00007％] 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fscientia-porta.com%2Fentry%2Flutetium" title="ルテチウムン [Lu ルテチウム] - scientia-porta" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/s/s-t-g/20240525/20240525183329.png Hatena Blog https://hatena.blog 2024-05-25 11:44:55 rich https://scientia-porta.com/entry/lutetium 1.0 100%