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The first periodic table of elements mandeleev created contained only 45 elements. true or false
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20 votes
The first periodic table of elements mandeleev created contained only 45 elements. true or false

User Robert Jordan
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2 Answers

28 votes
28 votes

Answer:

false

Step-by-step explanation:

User Rob Osborne
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25 votes
25 votes
Fales its either 61 or 32
User Tspauld
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