Six original Cambridge-style questions on isotopes: the definition, picking isotopes from a list, counting neutrons, and why they share the same chemistry.
Define the word isotope.
Carbon-12 and carbon-14 are isotopes of carbon (proton number 6). State the number of neutrons in each.
Three atoms have these proton and nucleon numbers: atom J (proton 8, nucleon 16), atom K (proton 8, nucleon 18), atom L (proton 7, nucleon 15). State which two are isotopes of each other and explain how you can tell.
Explain why two isotopes of the same element react in exactly the same way chemically.
State one physical property that is different between two isotopes of an element, and explain the cause.
A student says that adding a neutron to a carbon atom turns it into a different element. Explain why this is wrong.
Mark this once you have attempted all six and checked your working. It records a Practiced badge on the topic and adds a one-time bonus. Revealing the solutions alone does not count.