C3.2.3 - Discovering the Periodic Table Flashcards Preview

SHHS - Science - C3.2 Turning Points in Chemistry - Year 9 > C3.2.3 - Discovering the Periodic Table > Flashcards

Flashcards in C3.2.3 - Discovering the Periodic Table Deck (6)
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1
Q

Which scientist developed the Periodic Table?

A

Dmitri Mendeleev

2
Q

How did Mendeleev sort the elements into the periodic table?

A
  • He wrote each element, its mass and how it reacted with hydrogen and oxygen on a piece of card.
  • He arranged the cards in atomic mass order.
3
Q

What is meant by the atomic mass of an element?

A

The mass of the nucleus and electrons of a single atom of an element.

4
Q

Mendeleev was so confident of his periodic table that he did what?

A

Left gaps for elements that had not been discovered yet.

5
Q

Who discovered Rhenium?

A

Ida Tacke

Walter Noddack

Otto Berg

6
Q

What is Rhenium used as?

A

A catalyst to speed up chemical reactions.

Used in alloys to make jet engine parts.