Describe the trend in the reactivity of group 2 elements with chlorine as you descend down the group.
As you progress down the group:- Atomic radius increases, therefore there is more electron shielding.- There is an increase in the nuclear charge, however it is outweighed by the increase in shielding.- It is therefore easier to remove an outer electron and donate it to the chlorine molecule- Therefore down the group reactivity with chlorine (group 7 elements) decreases
NL
Related Chemistry A Level answers
All answers ▸Describe and explain the trend in boiling points in the first four hydrogen halides
Q3. A third beaker, C, contains 100.0 cm^3 of 0.0125 mol/dm^3 ethanoic acid ( Ka = 1.74 × 10^−5 mol/dm^3 at 25 ºC). Write an expression for Ka and use it to calculate the pH of the ethanoic acid solution in beaker C.
In an experiment a burrette was identified as the largest source of uncertainty, how could this uncertainty be reduced?
Calculate the empirical formula of a compound containing 77.7% Iron and 22.3% of oxygen.