Unit 2 paper 1 Flashcards
(21 cards)
Which property of elements increase down a group but decrease across a group?
Atomic radius
Why are complexes of d-block elements coloured?
B/c light is absorbed when electrons are promoted between d-orbitals
What is the electron configuration of a metallic element?
[Ne] 3^s2 + 3p^6 3d^3 4s^2
What is the right order for increasing first ionization energies for Al, Mg, Na?
Na Al Mg
What are the most reactive elements of the alkali metals and halogens?
Ceasium and fluorine
What is the name of the compound q/ formula Ti3(PO4)2?
Titanium (II) Phisphate
What element has the highest metallic character in group 14?
Sn
What kind of oxide is aluminium?
Amphoteric oxide
What kind of oxide is phosphorus?
Acidic oxide
What is the correct trend for going down groups 1?
Electronegativity increases
What property increases down group 1?
atomic radius
What factor does not affect the colour of a complex ion
Temp of solution
What is the name of the compound w/ the formula Cr2(CO3)3?
Chromium (III) Carbonate
What is the oxidation state of oxygen in H2O2?
-1
What is the trend for going down groups 1 and 17?
Ionization energies decrease
What trend shows a general increase across period 3 from Na to Cl?
Ionization energy
What oxide will dissolve in water to give the solution w/ the lowest pH?
MgO
What happens to the d-d spliting of a stronger ligand?
Increases
What happens to the wavelength of a stronger ligand?
Decreases
Typical characteristics of metals?
Low ionization energy and low electron affinity
Why is the pH of unpolluted rain less than 7?
Carbon dioxide and nitrogen oxides
