Particles in an atom (AQA GCSE Chemistry): Flashcards
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Practise the cards
12 cards from this deck
Three subatomic particles in atoms
Three subatomic particles in atoms
Protons, neutrons, electrons
Charge and location of protons
Charge and location of protons
Positive charge, found in nucleus
Charge and location of neutrons
Charge and location of neutrons
Neutral (no charge), found in nucleus
Charge and location of electrons
Charge and location of electrons
Negative charge, orbit around nucleus
What atomic number tells us
What atomic number tells us
Number of protons in an atom
Atomic number as identifier
Atomic number as identifier
Unique to each element, identifies which element
Electrons vs protons in neutral atom
Electrons vs protons in neutral atom
Equal number
Why atoms are electrically neutral
Why atoms are electrically neutral
Positive and negative charges balance out
Formula for mass number
Formula for mass number
Protons + neutrons
Formula to calculate neutrons
Formula to calculate neutrons
Mass number - atomic number
Where most of atom's mass is located
Where most of atom's mass is located
Nucleus (protons and neutrons are heavy)
What are ions
What are ions
Atoms that have gained or lost electrons