Periodic Table

Question 1

Properties of metals

Answer 1

• conduct electricity
• form basic oxides
• malleable/ ductile
• shiny
• high melting and boiling points
• high density
• form +ve ions

Question 2

Properties of non-metals

Answer 2

• don’t generally conduct electricity
• form acidic oxides
• brittle
• dull
• low melting and boiling points
• form -ve ions

Question 3

What does the group show

Answer 3

Electrons in the outer shells

Question 4

What does the period show

Answer 4

Number of shells

Question 5

Common property of noble gases, and why

Answer 5

• Inert
• Outer shell is full so there is no tendency to lose, gain or share electrons

Question 6

Lithium reaction with water

Answer 6

Float, fizz, move around on surface, lithium gets smaller/disappears

Question 7

Sodium reaction with water

Answer 7

Float, fizz, move around on surface, melts into a sphere and gets smaller/disappears

Question 8

Potassium reaction with water

Answer 8

Float, fizz, move around on surface, burns with a lilac flame, spits and explodes, gets smaller/disappears

Question 9

Alkali metal and water forms

Answer 9

Alkaline hydroxide and hydrogen

Question 10

Trend in reactivity of alkali metals

Answer 10

• Reactivity increases down the group
• As the atoms get bigger, the outer electron is further from the nucleus.
• It is less strongly attracted by the nucleus and therefore more easily lost.