BBC10 个月
Metals and non-metals in the periodic table
The ions formed have a full outer electron shell, so are very stable. See the study guide on groups in the periodic table for more information.
Royal Society of Chemistry5 年
Chemistry in its element: lawrencium
Element 103 in the periodic table ... configuration of this week's element, lawrencium, has now been revised as a result of some calculations that include quantum relativistic effects. Although it has ...