✋Introduction
Group 1 and 2 metals
In this lesson: I can describe the pattern in the reactivity of Group 1 metals with water and Group 2 metals with dilute acid, and compare the reactivity of the two groups. The properties of elements in each group of the periodic table change gradually down the group. Group 1 metals are soft, have lower densities than most other metals, and become more reactive down the group.
Lesson outcome
Waxaan qeexi karaa qaabka falcelinta biraha kooxda 1 ee biyaha iyo biraha kooxda 2 ee asiidhka khafiifka ah, oo waxaan isbarbardhigi karaa falcelinta labada koox.