The properties of the alkaline earth metals group (2 A)
The alkaline earth elements are the metallic elements found in the second group of s-block after the group (1 A). They are located on the left side of the modern periodic table.
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Adaptation in desert plants examples, How are Desert plants adapted to their environmental conditions?
Desert plants are generally small-sized as compared to the plants that grow in environments that have water. The desert plants face a shortage of water and rain, strong wind, and an extreme rise in...
Adaptation for hiding and the birds’ migration
Camouflage is the ability of some living organisms to be hidden from their enemies or to capture the preys of the predatory species.
The description of the modern periodic table
The modern periodic table consists of 7 horizontal periods and 16 vertical groups (18 vertical columns). The elements of the modern periodic table are classified into 4 blocks (s, p, d, and f).
