Question

Explain the patterns and sections of the periodic table in detail.

Answer 1

Answer:

Each box represents an element and contains its atomic number, symbol, average atomic mass, and (sometimes) name. The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Groups are labeled at the top of each column.

Answer 2

Answer:

The periodic table orders elements by increasing atomic number, which is the number of protons in the atom of an element. The rows of the periodic table are called periods. ... All elements in a group share the same number of valence electrons. The three broad categories of elements are metals, nonmetals, and metalloids.

Explanation:

look at the image once..

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