28 questions in Matter and materials at Form 2
Most triedMost missedNewest- What are the three particles in an atom?
- Which particle in an atom has a negative charge?
- Which particle in an atom has no charge?
- What is the atomic number of an element?
- An atom has 6 protons and 6 neutrons. What is its mass number?
- Sodium has atomic number 11. How many electrons does a neutral sodium atom have?
- What is the electron arrangement of an atom with 11 electrons?
- In the periodic table, what are the vertical columns called?
- Which group of the periodic table contains the noble gases?
- Why are noble gases such as helium and neon very unreactive?
- How many atoms are in one molecule of carbon dioxide (CO₂)?
- What is the chemical name for NaCl?
- What is the chemical name for CaCO₃?
- Which metal is the most reactive of these?
- Which metal is the least reactive of these?
- Why is gold used for jewellery?
- Why is aluminium used for aircraft bodies?
- Why is copper used for electrical wires?
- What is an alloy?
- Which alloy is made mainly from copper and zinc?
- What is galvanising?
- Which gas makes up about 21% of the air?
- What are the three things a fire needs (the fire triangle)?
- Why does sand put out a small fire?
- Why should water never be used on an electrical or oil fire?
- What poisonous gas forms when fuels burn in too little oxygen?
- Why is it dangerous to burn charcoal in a closed room?
- Which is the word equation for burning methane?