How many elements did mendeleev’s original periodic table have?

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the answer to this is : 50 elements

EXPLATION:

The concept of a systematic measure for atomic weights greatly contributed to the success of Mendeleev's periodic table. In (1864) in with about 50 elements known,The mass of an atom in theA.M.U. is roughly equal to the sum of the number of protons and neutrons in the nucleus in the atom . The A.M.U. is used to express the relative masses of, and thereby differentiate between, various isotopes of elements.

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FaithRawlins14

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called