the transition elements (C3) Flashcards Preview

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Flashcards in the transition elements (C3) Deck (15):
1

what are all transition elements?

metals

2

are they good conductors of heat and electricity?

yes

3

how dense are the elements?

very dense (more than group 1)

4

are the elements more or less reactive than group 1?

less (don't react as vigorously with water or oxygen)

5

are the melting points higher or lower than group 1?

higher

6

which element is the exception to the rule about melting points?

mercury (it's liquid at room temp)

7

are the elements harder and strong than group 1?

yes

8

name to another property of the elements?

they are shiny

9

what can they be used for?

catalysts

10

what do they often have more of?

more than 1 ion (can have different charges)

11

give an example of an element which can have more than 1 ion

copper : copper+1 or copper+2

12

what is one aesthetic feature of them?

they are colourful

13

why are the elements often colourful?

due to the transition metal ion they contain

14

are transition metals good catalyst

yes

15

give one example of a catalyst in a reaction

manganese (IV)oxide are good catalyst for the decomposition of hydrogen peroxide