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frozen [14]
3 years ago
6

The classification of elements in the periodic table is mainly based on ​

Chemistry
1 answer:
Allushta [10]3 years ago
8 0

Answer:

atomic number

Each period, numbered one through seven, contains elements of increasing atomic number. Unlike Mendeleev's original list, the modern periodic table is based on atomic number, or the number of protons in an element's atomic nucleus

Explanation:

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