3 - Periodicity Flashcards
1
Q
lanthanoids
A
first row of f-block elements
2
Q
actinoids
A
second row of f-block elements
3
Q
ionisation energy
A
energy requires to remove an electron in the gaseous state
4
Q
electron affinity
A
energy released when an electron is added to an atom in the gaseous state
5
Q
electron negativity
A
numerical value associated with an atoms ability to form a covalent bond
6
Q
amphoteric (with example)
A
acts as an acid or base (depends on situation) e.g Al
base- Al2O3 + 6HCl -> 3H20 + 2AlCl (salt+water)
acid- Al2O3 + 2NaOH + 3H2O ->2 [Al(OH)4]- + 2Na+
7
Q
Halogen + Halide reactions
A
Cl2 + 2NaBr -> Br2 + 2NaCl
only works id halogen is bigger that halide at the start
