Metals LSL

Metallic bonding consists of a giant structure of positive metal ____ surrounded by a sea of...

Metallic bonding consists of a giant structure of positive metal ions surrounded by a sea of ___________ _________

Alloys are hard because the different ions distort the layers of metal ions, making it more difficult for them to slide over each other.

• True

• False

Na + H₂O --> ____ + 1/2H₂

Zinc + Sulphuric acid --> ____ ________ + hydrogen

Metal + steam --> metal _____ + hydrogen

Group I metals react by ______ an electron

Which of these increase down group I?

• number of protons in the nucleus

• Shielding of the outer electron

• Distance of the outer electron from the nucleus

• Electrostatic force of attraction between the outer electron and the nucleus

Iron Oxide + Aluminium --> _________ _____ + Iron

Which species gets oxidised in the following equation?

2Al(s) + 3Cu²⁺ --> 2Al³⁺ + 3Cu(s)

• Al

• Cu²⁺

• Al³⁺

• Cu