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ScotlandChemistryQuick questions
Area 1: Chemical Changes and Structure
Quick questions on Atomic structure: protons, neutrons, electrons and isotopes - SQA National 5 Chemistry
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
An atom has 19 protons and 20 neutrons. State its mass number and the number of electrons in the neutral atom. [2 marks]
What is q2?Show answer
Write the electron arrangement of an atom of sulfur (atomic number 16). [1 mark]
What is q3?Show answer
Explain why isotopes of the same element react in the same way. [2 marks]
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