The Alkali Metals (Leaving Cert Chemistry): Flashcards
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14 cards from this deck
Periodic Table group of alkali metals
Periodic Table group of alkali metals
Group 1
Three main alkali metals in Leaving Cert course
Three main alkali metals in Leaving Cert course
Lithium (Li), sodium (Na), potassium (K)
Why called 'alkali' metals
Why called 'alkali' metals
Form alkaline (basic) solutions when they react with water
Number of outer electrons in alkali metals
Number of outer electrons in alkali metals
One electron
Physical hardness of alkali metals
Physical hardness of alkali metals
Soft - can be cut with a knife
Charge on alkali metal ions
Charge on alkali metal ions
Products: alkali metal + oxygen
Products: alkali metal + oxygen
Metal oxide
Products: alkali metal + water
Products: alkali metal + water
Metal hydroxide + hydrogen gas ()
Reactivity trend down Group 1
Reactivity trend down Group 1
Reactivity increases
Why reactivity increases down Group 1
Why reactivity increases down Group 1
Outer electron further from nucleus, easier to remove
Storage method for alkali metals
Storage method for alkali metals
Under oil
Why alkali metals stored under oil
Why alkali metals stored under oil
Prevent contact with oxygen and water vapour
Use of lithium
Use of lithium
Batteries for phones and electric cars
Gas released when alkali metals react with water
Gas released when alkali metals react with water
Hydrogen gas ()