Question 1
Identify which element will form an ion by losing three electrons.
Worked answer
🔒 Start free to see full answer
Chemistry · Unit 1 · Properties and structure of atoms · Atomic structure
Identify that the number of electrons lost, gained or shared is determined by the electron configuration of the atom.
Practise this objective
AI-marked practice questions tied to QCAA mark schemes for this exact LO. Free to start.
Start free practicePractice questions for this objective
Full questions, answers and worked solutions unlock when you start a free practice session.
Question 2
Magnesium reacts with oxygen to form magnesium oxide, MgO. Identify the number of electrons lost by a magnesium atom in this reaction. Explain your reasoning with reference to the electron configuration of magnesium.
Worked answer
🔒 Start free to see full answer
Question 3
Identify which element would form an ionic compound by losing two electrons.
Worked answer
🔒 Start free to see full answer