Aqa Certificate in Chemistry (Igcse) Level 1/2: Chemistry (Chapter 5)- The Periodic Table Flashcards


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1

The atomic number of an element...

determines its position in the periodic table

2

The number of electrons in the outermost shell...

determines its chemical properties

3

The group number....

determines how many electrons are there on the outer shell

4

What are the characteristics of Group 1 metals

-Very reactive in the air and water
-Soft and shiny
-Low melting and boiling points

5

What occurs when group 1 metals come in contact with water (Provide an example with word equation)

-They fizzle and produces hydrogen gas

6

Give some characteristics of ionic group 1 metal compounds

- 1+ ions
-Generally white in colour
-Soluble

7

What are the characteristics of transition metals

-Good conductors of electricity and heat
-Hard and strong
-High densities
-High melting points

8

Give some characteristics of ionic transition metal compounds

-Can form more than one ion

9

What are the characteristics of halogens

-Low melting and boiling points
-Poor conductors of electricity and heat
-More reactive halogens can displace a less reactive halogen

10

Why does the reactivity in group 1 metals go up going down the table?

-The electrons get further away from the nucleus
-The oppositely attractive forces decreases as the nuclues and the outmost electron get further apart
-This is due to the inner electrons "shielding" the force
-Thus, the electrons are removed easier as they go down the table, thus more reactive

11

Why does the reactivity in group 7 halogens go down when going down the table?

-The electrons get further away from the nucleus
-The oppositely attractive forces decreases as the nuclues and the outmost electron get further apart
-This is due to the inner electrons "shielding" the force
-Thus, the electrons are removed easier as they go do