Group 1 (AQA GCSE Chemistry Combined Science): Flashcards
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14 cards from this deck
Name for Group 1 elements
Name for Group 1 elements
Alkali metals
Density of first 3 alkali metals vs water
Density of first 3 alkali metals vs water
Less dense than water, so they float
Melting point trend down Group 1
Melting point trend down Group 1
Decreases
Charge of ions formed by alkali metals
Charge of ions formed by alkali metals
+1
Reactivity trend down Group 1
Reactivity trend down Group 1
Increases
Least reactive alkali metal
Least reactive alkali metal
Lithium
Most reactive alkali metal
Most reactive alkali metal
Francium
Number of outer electrons in Group 1
Number of outer electrons in Group 1
One
Why reactivity increases down Group 1
Why reactivity increases down Group 1
Outer electron further from nucleus, easier to lose
Products when alkali metal reacts with water
Products when alkali metal reacts with water
Metal hydroxide and hydrogen gas
Observable gas produced in water reaction
Observable gas produced in water reaction
Hydrogen (bubbles seen)
pH change when alkali metal reacts with water
pH change when alkali metal reacts with water
Solution becomes alkaline
Product when alkali metal reacts with chlorine
Product when alkali metal reacts with chlorine
White, solid, soluble ionic chloride
Product when alkali metal reacts with oxygen
Product when alkali metal reacts with oxygen
White, solid ionic oxide