#REACTIVITY SERIES HOW TO#
#REACTIVITY SERIES SERIES#

(e) Chemical formulae, equations and calculations.1:24 understand why the noble gases (Group 0) do not readily react.1:23 Understand why elements in the same group of the Periodic Table have similar chemical properties.1:22 understand how the electronic configuration of a main group element is related to its position in the Periodic Table.1:21 identify an element as a metal or a non-metal according to its position in the Periodic Table.

#REACTIVITY SERIES HOW TO#

1:20 understand how to use electrical conductivity and the acid-base character of oxides to classify elements as metals or non-metals.

1:19 understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table.

1:18 understand how elements are arranged in the Periodic Table: in order of atomic number, in groups and periods.

1:17 be able to calculate the relative atomic mass of an element (Aᵣ) from isotopic abundances.

1:16 know what is meant by the terms atomic number, mass number, isotopes and relative atomic mass (Aᵣ).

1:15 know the structure of an atom in terms of the positions, relative masses and relative charges of sub-atomic particles.

1:14 know what is meant by the terms atom and molecule.

1:13 practical: investigate paper chromatography using inks/food colourings.

1:12 understand how to use the calculation of Rf values to identify the components of a mixture.

1:11 understand how a chromatogram provides information about the composition of a mixture.

1:10 describe these experimental techniques for the separation of mixtures: simple distillation, fractional distillation, filtration, crystallisation, paper chromatography.

1:09 understand that a pure substance has a fixed melting and boiling point, but that a mixture may melt or boil over a range of temperatures.

1:08 understand how to classify a substance as an element, a compound or a mixture.

1:07 (Triple only) practical: investigate the solubility of a solid in water at a specific temperature.1:06 (Triple only) understand how to plot and interpret solubility curves.1:05 (Triple only) know what is meant by the term solubility in the units g per 100g of solvent.1:04 know what is meant by the terms: solvent, solute, solution, saturated solution.

1:03 understand how the results of experiments involving the dilution of coloured solutions and diffusion of gases can be explained.1:02 understand the interconversions between the three states of matter in terms of: the names of the interconversions, how they are achieved and the changes in arrangement, movement and energy of the particles.1:01 understand the three states of matter in terms of the arrangement, movement and energy of the particles.The oxides of metals like potassium, sodium, calcium, magnesium, and aluminum cannot be reduced by the common reducing agents.The larger the difference between the positions of two metals the faster the displacement reaction.

#REACTIVITY SERIES SERIES#

A metal which is placed higher in the reactivity series can replace a metal below it in order to form the salt solutions of the latter metal.All the metals above hydrogen in the activity series have the ability to reduce hydrogen ions from dilute hydrochloric or dilute sulphuric acid to liberate hydrogen gas.Potassium and sodium being highly reactive react with cold water to liberate hydrogen gas which gets ignited by the heat produced in the reaction. Also, as we move down the reactivity series the ability of metals to reduce water into hydrogen reduces.Therefore potassium gets oxidized most readily. The tendency of metals to get oxidized decreases as we move down the activity series.Hence potassium is the strongest reducing agent. The reducing power of metals decreases as we move down the reactivity series.The electropositive character decreases as we move down the reactivity series. Potassium and sodium react with oxygen to form superoxide but in the limited supply of oxygen, they form their own oxides.SALIENT FEATURES OF THE REACTIVITY SERIES:

Reactivity series