Question

Speech about mendeleev table is important in human life with in 5min

Answer 1

Explanation:

Epidermis: The upper or outer layer of the two main layers of cells that make up the skin. The epidermis is mostly made up of flat, scale-like cells called squamous cells. Under the squamous cells are round cells called basal cells. ... These cells produce melanin, which gives the skin its color.

Answer 2

Answer:

1. Mendeleev's periodic table was the most important step in the classification of elements

2. He namely their atomic masses as standard and arranged 63 elements known at that time according to their increasing order of their atomic masses

3. Mendleev observed periodic table on the basis of their physical and chemical properties of their elements

4.Mendleev found that the elements have similar physical and chemical properties repeating after difinite interval.

5. On the basis of this finding ,mendleev stated the periodic law that "Properties of elements are periodic function of their atomic masses".