How many elements are there in the Periodic Table 2018?

Related questions

1. What do numbers on periodic table mean?
2. Why the number of elements in the third period is 8?
3. How is atomic mass defined?
4. What is the highest atomic number?
5. Why is it called the periodic table?
6. What is 16 in the periodic table?
7. How do we calculate the atomic mass?
8. How does the periodic table of elements work?
9. Why are there only 8 electrons in the third shell?
10. Where is the atomic number?

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4. #discoveries
5. #international
6. #hydrogen
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8. #officially
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11. #iupac
12. #applied
13. #union
14. #table
15. #confirmed
16. #element
17. #elements