Periodic table Flashcards
What are five properties of group 0 elements?
Inert, full outer shell, colourless, monoatomic, non-flammable
What is the colour and state of chlorine at room temperature?
Green, gas
What is the colour and state of bromine at room temperature?
Brown, liquid
What is the colour and state of iodine at room temperature?
solid, black/purple/blue
How does boiling point and melting point change as you go down group 7?
Increase
What does diatomic mean?
Reactions that happen in pairs
How does reactivity change as you go down group 7?
Decreases
Where are transition metals found?
Between group 2 and 3
Name some properties of transition metals?
Lustrous when freshly cut, dense, conduct electricity as a solid, hard
What is the radius of an atom?
1x10^10 metres
0.1 nm
What is the radius of the nucleus of an atom?
1x10^-14 metres
How does the reactivity of group 1 change as you go down the group?
Reactivity increases as you go down the group, group 1 elements need to lose 1 electron to get a full outer shell. As you go down the group there are more shells which means more shielding (more electrons in the way of the nucleus) and less nuclear attraction so it is easier to lose the last electron.
How does reactivity change as you go down group 7?
Reactivity decreases, need to gain 1 electron to get a full outer shell. As you go down the group there are more shells which means more shielding and less nuclear attraction, so it is harder to gain the last electron.
