Question

describe the modern periodic table​

Answer 1

A periodic table is still used today to organize the elements. You can see a simple version of the modern periodic table in the Figure below. The modern table is based on Mendeleev’s table, except the modern table arranges the elements by increasing atomic number instead of atomic mass. Atomic number is the number of protons in an atom, and this number is unique for each element. The modern table has more elements than Mendeleev’s table because many elements have been discovered since Mendeleev’s time.

Answer 2

Answer:

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The modern periodic table is used to organize all the known elements. Elements are arranged in the table by increasing atomic number. ... Atomic numbers increase from left to right and from top to bottom in the table. Rows of the periodic table are called periods