Chemistry Y9 Flashcards
What are the 3 parts of an atom?
Proton
Neutron
Electron
- What is the relative mass for each part of the atom?
- What is the relative charge for each part of the atom?
- Proton-1
Neutron- 1
Electron- 1/2000 - Proton- (+1)
Neutron- 0
Electron- (-1)
- What is the mass number?
- What is the atomic number?
1.Protons+Neutrons.
2. Protons, electrons.
What is Ionic bonding?
Metal atom donates electron to a non-metal atom.
What is Covalent bonding?
Non-metal atoms share a pair of electrons?
- What does the period number tell you on a periodic table?
- What does the group number tell you on a periodic table?
- Amount of electron shells.
- The amount of electrons in the outermost electron shell.
What is the prefix of an alkane/alkene if it has:
1,2,3,4,5,6,7,8,9,10 carbon atoms?
1- Meth
2- Eth
3- Prop
4- But
5- Pent
6- Hex
7- Hept
8- Oct
9- Non
10- Dec
- What is an alkane and the general formula?
- What is an alkene and the general formula?
- Saturated hydrocarbon. CnH2n+2.
- Unsaturated hydrocarbon. CnH2n.
What are properties of a transition metal?
- Dense
- High melting point
- Coloured
- Strong/hard
- Can act as a catalyst
What are ways to prevent corrosion?
Electroplating- Thin layer of metal on an object.
Sacrificial protection- Put a more reactive metal on a less reactive metal so the more reactive one will get oxidised.
How do you reduce metals?
Explain.
-You add carbon to a less reactive metals to the carbon displaces it to form carbon dioxide.
- Electrolysis. The oxygen goes to the anode (positively charged side) and the metal goes to the cathode (negatively charged side).
How do you extract metals?
Explain.
Bioleaching- Bacteria separates metals from their ores because bacteria gets the energy from the bonds between the atoms and in the process the metal is extracted.
Phytoextraction- Grow plants in soil that has metals in so the plants will take the metals i through the roots and into the leafs then the p,ants are burnt and the metals will be in the ash and then extracted.
