Year 7 Science – Periodic Table and Atomic Structure 1
Practise element symbols, everyday elements, the particles inside atoms, groups and periods, simple formulas and the properties of metals and non-metals. 20 questions. 25 minutes.
Which element has the chemical symbol Cu?
Which everyday object is made mostly from the element aluminium?
Which list names the three subatomic particles?
Choose the symbol that completes the sentence.
The chemical symbol for iron is 1.
Blank 1: Ir · I · Fe
Circle 1 word in the sentence below.
Click the chemical symbol for sodium.
SSoNaN
A pure piece of gold is cut into smaller and smaller pieces. Which is the smallest piece that still has the properties of gold?
Which of these has no electric charge?
Choose the word that completes each blank.
A proton has a 1 charge and is found in the 2.
Blank 1: positive · negative · zero
Blank 2: outer shell · nucleus · first shell
Circle 2 words in the sentence below.
Click the two particles that are found inside the nucleus.
protonelectronneutronshell
In the planetary model of the atom, where are the electrons found?
In the periodic table, what is a vertical column of elements called?
Choose the word that completes each blank.
Metals are found mostly on the 1 of the periodic table and non-metals on the 2.
Blank 1: right · middle · left
Blank 2: top · right · centre
How many atoms are joined together in one molecule of carbon dioxide, CO₂?
Choose the element that completes each blank.
Water has the formula H₂O. It contains atoms of 1 and 2.
Blank 1: hydrogen · helium · holmium
Blank 2: osmium · oxygen · nitrogen
Circle 2 words in the sentence below.
Click the two non-metals in this list.
silvercarbonironoxygen
Choose the word that completes each blank.
Metals are good 1 of electricity and can be hammered into shape because they are 2.
Blank 1: conductors · insulators · absorbers
Blank 2: brittle · dull · malleable
Steel is used to build bridges. What type of substance is steel?
The mass number of an atom is the number of protons plus the number of neutrons. What is the mass number of this atom?
| Particle | Number in the atom |
|---|---|
| Protons | 3 |
| Neutrons | 4 |
| Electrons | 3 |
Choose the word that completes each blank.
An electron has 1 mass compared with a proton, so almost all of an atom's mass is in the 2.
Blank 1: much less · the same · much more
Blank 2: shells · nucleus · outer shell
A student tested four elements. Which element is most likely a metalloid?
| Element | Appearance | Conducts electricity | Brittle when solid |
|---|---|---|---|
| P | Shiny | Yes | No |
| Q | Dull | No | Yes |
| R | Shiny | Poorly | Yes |
| S | Shiny | Yes | No |