G7 MT exam

1.       Which components of an atom is negatively charged? (2)

• Proton

• Neutron

• Electron

1.       How many atoms in a molecules of carbon dioxide?  (2)

• 1

• 2

• 3

Give a word equation for the reaction between iron metal and oxygen gas making solid iron oxide              

• iron + oxygen = iron oxide

• Gas + iron metal = iron oxide

• Air + iron metal = oxygen

• metal + gas = iron metal

1.       Which group number on the periodic table would you find alkali metals   (2)

• 6

• 1

• 4

• 2

1.       Which group number on the periodic table would you find the halogens  (2)

• 2

• 7

• 3

• 4

1.       Fill in the missing word. We can see …………… in properties, melting points decrease in group 1 from lithium to rubidium (2)

• action

• atoms

• trends

• reaction

1.            What are the common physical properties of metals

• Gaseous

• Malleable

• Ability to flow

Name an element which is an alkali metal 

• Tungsten

• Potassium

• Gold

• Carbon

Why can’t we see stars during the day? 

• the light from our sun is too bright

• the stars are not suns

• the sun is too close to the Earth

• All of the anwsers

The force of Gravity depends on its mass? 

• True

• False