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13. Who is Berzelius?

14. What are his other contributions?

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To complete our journey,
let’s take a look of some of
our friends’ profile.

17. What are his contributions?

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“Chemistry is Fun” posted a trivia.

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Our next fb friend is popular for
his atomic theory. Who do you
think he is?

23. Who is Dalton?

24. What are his contributions?

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We have some handsome
facebook friends. Let us see their
profiles.

28. What are his contributions?

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What is the Law of Triad?

32. What was his contribution in the
development of periodic table?

35. What was his contribution?

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We will now take a look to the
man who changed everything. The
man who is the reason why there
is modern periodic table of
elements.
Who do you think is he?

39. What were his contributions in the periodic table?

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On the other hand, in almost same year
Julius Lothar Meyer published his
periodic table. Let’s look on his timeline
to identify who he is.

43. What were his contributions?

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Chemistry is Fun posted a trivia.

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Mendeleev’s periodic table was
widely used in school, books, learning
centers and the likes.
Chemistry is Fun page posted a trivia.

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Major changes in the modern
periodic table were made by Seaborg
when he adds lanthanides and actinides
below the periodic table.
Why do you think lanthanides and actinides were
placed below other elements?

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Is there any question so far?
Chemistry is Fun page posted a status.

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Let us have some exercises.