Year 9 · Science · Worksheet · $7.99 AUD
A Year 9 Science worksheet on atomic structure for practising how to work out protons, neutrons and electrons from the periodic table. After a worked example on chlorine, students read atomic and mass numbers, calculate subatomic particles for different atoms and explain isotopes, neutral charge and why an atom's mass sits in the nucleus. An answer key is included.
Part of the "Atoms, Mass and Reaction Rates" sub-unit. Aligned to AC9S9U06 (Australian Curriculum v9).
Students will:
• Find atomic number and mass number from the periodic table
• Calculate neutrons as mass number minus atomic number
• Explain why the number of protons defines an element
• Distinguish isotopes of the same element
A ready-to-teach worksheet, supplied as PDF, editable Word (DOCX) and PowerPoint (PPTX).
By Lab Notes on EduSellers — ACARA-aligned teaching resources.