Question

What is chemistry?
Define Modern periodic table?

Answer 1

Answer:

Chemistry is the scientific disciplines involved with elements and compounds composed with atom , molecules and ions .

Morden periodic table is used to organise all the called elements.

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Answer 2

Answer:

Chemistry is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.

The modern periodic table is used to organize all the known elements. Elements are arranged in the table by increasing atomic number....

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