4 - inorganic (groups)

Question 1

first ionisation energy

Answer 1

of an element is the energy required to remove an electron from each atom in one mole of atoms in the gaseous state

Question 2

second ionisation energy

Answer 2

of an element is the energy required to remove an electron from each singly charged positive ion in one mole of positive ions in the gaseous state

Question 3

basic oxides

Answer 3

oxides of metals that react with water to form metal hydroxides, and with acids to form salts and water

Question 4

disproportionation

Answer 4

the simultaneous oxidation and reduction of an element in a single reaction

Question 5

thermal stability

Answer 5

a measure of the extent to which a compound decomposes when heated