Karteikarten
C1- Atomic Structure & the Periodic Table
Karten in diesem Stapel (31)
- 1What is the name for group 0?The noble gases
- 2What happens when the boiling point increases going down group 0 in the periodic table?The atoms become larger
The inter molecular forces between the atoms become stronger
More energy is needed to overcome these forces - 3Why are the noble gases so unreactive?Atoms of Group 0 elements already have stable arrangements of electrons. This means they have no tendency to lose, gain or share electrons
- 4Which sub atomic particle was discovered in 1897?Electron
- 5Which sub atomic particle was discovered in 1920?Proton
- 6Which sub atomic particle was discovered in 1932?Neutron
- 7How can you separate an insoluble solid from a liquid?Filtration
- 8What can Filtration be used for?To separate a solid from a liquid
- 9What does Crystallisation separate?Solids that have dissolved (solutes) in a liquid (solvent)
- 10What does Distillation do?Separates two liquids from each other
- 11When does Distillation only work?It only works if the substances mixed together have different boiling points
- 12What are the stages of Distillation?Heating, evaporating, cooling, condensing
- 13What is Fluorine?. Its a halogen
. It is a pale yellow gas
. It reacts violently with almost everything (including glass) - 14Why would storing Fluorine be difficult?It reacts with everything
- 15Where can fluorine be found?In toothpaste to strengthen our teeth
- 16What is Chlorine?. It is a halogen
. It is a pale yellow/green gas
. Can be deadly - 17What do we use Chlorine for?. Purifying drinking water
. Cleaning swimming pools - 18Where is Chlorine commonly found?In the compound Sodium Chloride
- 19What is Bromine?. A halogen
. liquid at room temperature
.evaporates into a purple/brown choking gas that smells a lot like Chlorine. - 20What is Bromine used for?The bromine compound sodium bromide is used to keep hot tubs clean
- 21What is Iodine?. A halogen
. Sublimes into a pretty violet vapour when heated - 22What is Iodine used for?Used a disinfectants before better antiseptics were found.
- 23What does the word Sublimes mean?When a substance changes straight from a solid to a gas.
- 24Does the melting point increase or decrease as you go down group 0?Increases
- 25Does the density increase or decrease as you go down group 0?Increases
- 26Does the boiling point increase or decrease as you go down group 0?Increases
- 27Does the reactivity increase or decrease as you go down group 0?Decrease
- 28What are the properties of metals?.Shiny
. ductile- can draw it out into wires
. strong
. good conductors of electricity
. good conductors of heat
. malleable- can shape it into place
. high melting points - 29Why does iodine have a higher boiling point than chlorine?The forces between iodine molecules are stronger
- 30Why does potassium iodine solution conduct electricity?It contains ions which can move
- 31Give one use for Argoncan be used in light bulbs/lasers
Informationen
- Beschreibung
- Key information that will be useful to use to revise for GCSE's and tests!
- Erstellt von
- ? 6Parker.AlannahMae · Jan 2019
- Aktualisiert
- 6 Mai 2019
- Aufrufe
- 1
- Bewertung