2.1-2.7, 8.1-8.5 · Atoms, elements and the periodic tableLesson 7 of 12Free preview
Reading the group and the period
Magnesium is 2, 8, 2. Deduce its column and its row from that alone.
2.1-2.7, 8.1-8.5 · Atoms, elements and the periodic tableLesson 7 of 12Free preview
Magnesium is 2, 8, 2. Deduce its column and its row from that alone.