• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

An Essay on theComparison and Contrast between Group 1 and Group 2 Elements

Extracts from this document...


An Essay on the Comparison and Contrast between Group 1 and Group 2 Elements In this essay I will examine the characteristics of group 1 and group 2 elements which are also known as alkaline metals. Group 2 metals are alkaline earth metals which are strong reducing agents, and as a result, give up their electrons easily. They are less reactive than the alkali metals, but still reactive enough that they are not found naturally occurring in nature. The metals are a shiny, silver-white colour and can conduct electricity well. The elements include beryllium, magnesium, calcium, strontium, barium, and radium. All of the Alkaline Earth Metals are found in the Earth's crust. They are usually distributed in rock structures as they are too reactive to exist in the natural form. Magnesium is the eighth most abundant element on earth and can be found in carnellite, magnesite, and dolomite. Calcium is the fifth most abundant element on earth and can be found in chalk, limestone. Group 1 are known as alkali metals these metals have only one electron in their outer shell and readily lose the one electron in ionic bonding with other elements they include the following elements lithium, potassium, sodium, francium and caesium. ...read more.


When strontium nitrate was heated it made popping sounds and became a liquid which started to become yellow into green and then brown, some light fumes were given off and there was gas at the top of the test-tube. Group 1 and 2 nitrates are all soluble, all the nitrates are soluble this is the chemical formula Sr(No3)2 ? BaO+No3. Lead nitrate is used in this test as a reference because this is the normal behaviour of a metal nitrate on heating. Lead nitrate was popping going into yellow fumes which went orange to brown and nitrogen oxide was given off this is shown by this equation: Pb(No3)4 ? PbO+4No2+3/2O2. Lithium nitrate is one if the peculiar nitrates this behaves like magnesium nitrate and like the elements in its group. This is one piece of evidence for the diagonal relation ship between lithium and magnesium nitrate. Diagonal relationship is the tendency of the element in the first row to behave like the element in the second row. Now I will talk about my third experiment which was about the reaction of metallic elements with water. The experiment was carried out using potassium and sodium. ...read more.


Here is the formula equation for barium hydroxide Ba(OH)2(s)+Aq Ba2+(aq)+2OH-(aq) also indigestion tablets contain Mg(OH) to neutralise excess acid in the stomach. When carbonate was added to the common salts of group 1 it still remained a colourless solution because all group 1 carbonates as I've stated are soluble and the formula equation is stated in this essay. When group 2 salts were added to carbonate we saw that all the group 2 salts were a white precipitate form and all group 2 salts are insoluble. On my fifth experiment I did a flame test using nichrome wire and the solid of group 1 and 2 compounds. The solids included sodium, potassium, calcium, strontium and barium. The colour of sodium is orange the colour of potassium is lilac the colour of calcium is brick red the colour of strontium is crimson red and the colour of barium is green. The characteristic flame colours arise from transitions within the atom. Heat energy from the flame excites and electron to a higher energy level. The electron returns to a lower level and the excess energy is released as light energy. The frequency of the flame colour depends upon the difference between the energy levels involved. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Aqueous Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Aqueous Chemistry essays

  1. Investigation into the efficiency of various indigestion tablets.

    When using titration, it is easy to make one small mistake which could alter the results completely. I have to look at the results critically and do the experiment again if there is a "freak-result".

  2. An Experiment Into the Thermal Decomposition of Metal Carbonates

    Mr = 207 + 60 = 267 0.004 * 267 = 1.068 Mass to produce 100 cm3 gas = 1.07g Copper Carbonate (CuCO3) Mr = 64 + 60 = 124 0.004 * 124 =.0496 Mass to produce 100 cm3 gas = 0.5g Apparatus * Boiling tubes * 5 * Delivery

  1. Investigating the energy change in reactions involving metals

    Clean the thermometer with a wet tissue, and clean the measuring cylinder, beaker, scalpel and forceps. Results & Observations Raw Data " Table of results showing the initial and final temperatures of reactions between several group one metals with hydrochloric acid Lithium - Average initial temperature: 21.4 + 21.4 +

  2. The group II elements are beryllium, magnesium, calcium, strontium, barium andRadium. The appearances of ...

    2MgO(s) Reaction with water Reactivity increases down the group. When magnesium and calcium react in water. a) Virtually no reaction occurs between magnesium and cold water. However, in a reaction with steam it forms magnesium oxide and hydrogen. Mg(s) + H2O(g) MgO(s) + H2(g) b) Calcium is more reactive.

  1. The group two elements consist of Beryllium, Magnesium, Calcium, Strontium, Barium and Radium

    Quicklime (CaO) is made by heating limestone (CaCO3) and changes into slaked lime, Ca(OH)2, on the addition of water. It is a cheap base for the chemical industry with many uses. When limestone is heated in a kiln at over 900oC, it breaks down into quicklime (calcium oxide)

  2. Indigestion - find out the composition of tablets which are for indigestion and compare ...

    heartburn - information and sales from My Pharmacy UK Andrews antacid What are they for? Andrew antacid chewable tablets neutralise excess acid and provide fast, effective relief from acid indigestion, heartburn and trapped wind. How to take: Adults: Chew or suck 1-2 tablets as required.

  1. Investigating the kinetics involved in the reaction of metals with acids.

    This means that the only difference between the acids is their strengths. This will therefore make the experiment fair. Concentrations - I have decided to use the concentrations from 0.5M to 3M, as they will provide enough results to draw a suitable conclusion.

  2. The Group VII elements - Halogens

    the electrons in nearby atoms and so polarize these atoms too ). These atoms will then be attracted to the original dipoles. The instantaneous dipole - induced dipole forces are the forces that hold halogen atoms together whether as gases, liquids or solids.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work