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Combined Science: Chemistry

GCSE · Edexcel · foundation

QuestionsFlashcards

Obtaining & Using Metals
Reversible Reactions & Equilibria
- Reversible Reactions & Equilibrium
  3
- The Haber Process
  4

Group 1
- Group 1 (Alkali Metals)
  4
- Group 1: Reactivity & Electronic Configurations
  4
Group 7
Group 0

Group 1 (Alkali Metals) Flashcards

All 4 cards in this deck

What are the elements in group 1 of the periodic table called?: The alkali metals.
e.g. lithium, sodium, potassium, rubidium (Rb), caesium (Cs), francium (Fr)
What do you observe when a small piece of sodium is added to water?: It floats, melts into a ball, moves around on the surface, fizzes (effervescence) and quickly disappears.
Give the balanced symbol equation, with state symbols, for sodium reacting with water.: $2\mathrm{Na}(s) + 2\mathrm{H_2O}(l) \rightarrow 2\mathrm{NaOH}(aq) + \mathrm{H_2}(g)$
The metal hydroxide solution is alkaline, turning universal indicator purple.
True or false? Alkali metals are soft enough to be cut with a knife.: True. Group 1 metals are soft, and they also have relatively low melting points.