Atomic structure periodic table 1 Which element has

Atomic structure & periodic table 1. Which element has the electronic structure 2. 8. 8. 1 ? 2. What is the relative mass of a neutron? 3. Name an element with only one electron in its outer shell 4. The atomic number of silicon is 14 – what does this mean? 5. Name an element with 6 electrons in its outer shell 6. Name an element with 8 electrons in its outer shell 7. Which period does sulphur belong? 8. Draw the electronic structure of a silicon atom Bonding 1. Draw a dot-and-cross diagram to show the covalent bonding in water, H 2 O 2. Draw a labelled diagram to explain how metals bond Group 1 elements 1. Finish the sentence: lithium atoms lose ……………………. . …. to make positive lithium ions 2. Explain why potassium is more reactive than sodium 9. Describe how to carry out a flame test 10. What is the name of the gas that burns with a ‘squeaky pop’? Transition metals 1. Two solutions are mixed to make an insoluble solid, what is this solid called? 2. What is the colour of iron(II) hydroxide? 3. Name a transition metal that forms blue compounds 4. Copper carbonate decomposes to make copper oxide and carbon dioxide – write a word equation for this reaction 5. Fe 2+ reacts with OH- to make Fe(OH)2 - write a balanced ionic equation for this reaction 3. Write a word equation for the reaction between sodium and water 4. Sodium loses electrons to make positive ions, what is the name of this reaction? Water 1. A sample of water is tested with silver nitrate, a yellow precipitate is formed – what ion is present? 2. Why does water go through the chlorination process? 3. Ba. Cl 2 reacts with Na 2 SO 4 to make Ba. SO 4 and Na. Cl – write a balanced symbol equation for this reaction 4. Sodium chloride reacts with silver nitrate to make sodium nitrate and silver chloride – write a word equation to show this reaction Group 7 elements 1. potassium and fluorine react to make potassium fluoride - write a balanced symbol equation for this reaction …………………………………………………. . 2. Write a word equation for the reaction between sodium and chlorine ……………………………………………………………………. 3. Why is chlorine more reactive than bromine? ……………………………………………………………………………………………………. 4. Name a group 7 element that is a red-brown liquid ………………………………………………………………………………………. 5. Which element in group 7 is a dark grey solid? …………………………………………………………………………………………………. ……. 6. What is reduction? ……………………………………………………………………. .