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Group One: The Alkali Metals
Transcript of Group One: The Alkali Metals
with Water and Oxygen: 2 Potassium and Oxygen Reaction Group 1
A collection of relatively soft metals showing a trend in melting reacting with oxygen and water.
lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs),and francium (Fr) ("Chemical Elements").
("BBC Bitesize") Reactions of Lithium, Sodium and Potassium with Water and Oxygen Reaction with Water ( H2o)
Hydroxide is produces for all the metals
Fizzes steadily then disappears.
Melts and forms a ball which moves.
Melts and floats.
Fire with sparks and lilac flame.
("BBC Bitesize") Reactions with Cold Water (H2o)
lithium + water -> lithium hydroxide + hydrogen
2Li(s) + 2H2O(l) -> 2LiOH(aq) + H2(g)
sodium + water -> sodium hydroxide + hydrogen
2Na(s) + 2H2O(l) -> 2NaOH(aq) + H2(g)
potassium + water -> potassium hydroxide + hydrogen
2K(s) + 2H2O(l) -> 2KOH(aq) + H2(g) Reactions with Oxygen (O) Lithium:
lithium+oxygen -> lithium oxide
4Li(s) + O2(g) -> 2Li2O(s)
sodium + oxygen -> sodium oxide.
4Na(s) + O2(g) -> 2Na2O(s)
potassium + oxygen -> potassium oxide.
4K(s) + O2(g) -> 2K2O(s) ("BBC Bitesize") ("GCSE Science") By Malvika Dahiya Properties of Alkali Metals Reaction with Oxygen (O)
Burns in air.
Burns in air.
Burns in air.
Lilac flame. ("GSCE Science") Melting and Boiling Points Densities of the Alkali Metals Hardness of the Alkali Metals
Francium= softest Patterns? Thank you! :) ("Youtube") ("BBC Bitesize") ("Chem Guide") Bibliography "Alkali Metals." Chemical Elements. N.p., n.d. Web. 12 Nov. 2012. <http://www.chemicalelements.com/groups/alkali.html>.
"Atomic and Physical Properties of Periodic Table Group 1." Chem Guide. N.p., n.d. Web. 15 Nov. 2012. <http://www.chemguide.co.uk/inorganic/group1/properties.html>.
"Group One Properties." BBC Bitesize. BBC, n.d. Web. 10 Nov. 2012. <http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_pre_2011/periodic_table/group1rev2.shtml>.
"The Periodic Table." GSCE Science. N.p., n.d. Web. 15 Nov. 2012. <http://www.gcsescience.com/pt7.htm>.