Atomic structure and isotopes (AQA GCSE Chemistry Combined Science): Flashcards
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13 cards from this deck
Three subatomic particles in an atom
Three subatomic particles in an atom
Protons, neutrons, electrons
Charge and mass of a proton
Charge and mass of a proton
Positive charge (+1), mass of 1
Charge and mass of a neutron
Charge and mass of a neutron
No charge (0), mass of 1
Charge of an electron
Charge of an electron
Negative charge (-1)
What the nucleus of an atom contains
What the nucleus of an atom contains
Protons and neutrons
Mass number formula
Mass number formula
Number of protons + number of neutrons
Atomic number represents
Atomic number represents
Number of protons
What defines an element
What defines an element
Atomic number (number of protons)
Radius of an atom
Radius of an atom
m (0.1 nm)
Where almost all of an atom's mass is located
Where almost all of an atom's mass is located
In the nucleus
Definition of isotopes
Definition of isotopes
Same element, same protons, different neutrons
Why isotopes react the same chemically
Why isotopes react the same chemically
Same number of electrons; reactions depend on electrons
Relative atomic mass
Relative atomic mass
Average mass of all isotopes of an element