Isotopes (AQA GCSE Physics Combined Science): Flashcards
📚Flashcards
Practise the cards
15 cards from this deck
ShowHide
Practise the cards
15 cards from this deck
What all atoms of the same element have in common
What all atoms of the same element have in common
Same number of protons
Property of neutral atoms (electrons vs protons)
Property of neutral atoms (electrons vs protons)
Same number of electrons and protons
Definition of isotopes
Definition of isotopes
Atoms of same element with different masses
What isotopes have the same vs what differs
What isotopes have the same vs what differs
Same protons, different neutrons
What mass number () represents
What mass number () represents
Number of protons + neutrons
What proton number () represents
What proton number () represents
Number of protons
Charge when more electrons than protons
Charge when more electrons than protons
Negative () charge
Charge when fewer electrons than protons
Charge when fewer electrons than protons
Positive () charge
How many stable isotopes most elements have
How many stable isotopes most elements have
One or two
What radioactive substances release
What radioactive substances release
Ionising radiation from nucleus
Process when unstable nucleus gives out radiation
Process when unstable nucleus gives out radiation
Radioactive decay
Definition of activity
Definition of activity
Rate at which unstable nuclei decay
Unit for activity and what equals
Unit for activity and what equals
Becquerel (Bq); 1 decay per second
Instrument to measure radioactive source activity
Instrument to measure radioactive source activity
Geiger-Muller tube
Nature of radioactive decay process
Nature of radioactive decay process
Totally random process