UNIT 1 TOPIC 3 Flashcards
What is metallic bonding?
a type of intramolecular bonding in which metals attract each other and forming a lattice of positive ions held together by a sea of delocalised electrons
What is lustre and how does it relate to metallic bonding?
the property of appearing shiny or glossy, which is due to the delocalised surface electrons being able to reflect light
What is malleability and how does it relate to metallic bonding?
the ability to be bent and hammered without breaking, which is caused by the strong bond and the freely moving electrons allow it to adapt to change in shape
What is ductility and how does it relate to metallic bonding?
the ability to be drawn/thinned out without breaking which is caused by the strong bond and free moving electrons being adaptable to shape changes
What is conductivity and how does it relate to metallic bonding?
the ability to allow electrical current or heat to flow though, which is caused by the electrons being free moving and able to create a chain reaction in order to pass the electricity/heat down
What are the 3 main types of oxidation reactivity?
acid, water and oxygen
What types of oxidation reactivity are applicable to the most elements?
oxygen>acid>water
What two oxidation reactions always include hydrogen gas?
water and acid
What is oxidation?
a chemical reaction in which a chemical loses electrons
Why are metals hard with high melting and boiling points?
have strong bonds that are hard to break
Why are metals good conductors?
always have free moving electrons
Why are metals malleable and ductile?
even if ions move they are still held together by delocalised electrons
Why do metals have high densities?
particles are tightly packed in metal
Why are metals good heat conductors?
tightly packed thus making it easier to transfer heat effectively
Why are metals lustrous?
free moving electrons are present allowing metals to reflect light
