Answer:
The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. ... For instance, all the group 18 elements are inert gases.
Explanation:
the minimum frequency of radiation that will produce a photoelectric effect
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Answer: In a chemical equation the reactants are located on the left side and the products are located on the right side.
