Embedded Files
How do the nuclei of atoms differ?
How do the nuclei of atoms differ?
SKILLS Focus
SKILLS Focus
Use basic arithmetic and algebraic calculations to solve problems.
Identify and use symbols stated in the guide and the data booklet
Carry out calculations involving decimals, fractions, percentages, ratios, reciprocals and exponents.
Deduce the number of protons, neutrons and electrons in atoms and ions.
Perform calculations involving non-integer relative atomic masses and abundance of isotopes from given data.
(AHL) Interpret mass spectra in terms of identity and relative abundance of isotopes.
UNDERSTANDINGS
UNDERSTANDINGS
Atoms contain a positively charged, dense nucleus composed of protons and neutrons (nucleons). Negatively charged electrons occupy the space outside the nucleus.
Isotopes are atoms of the same element with different numbers of neutrons.
(AHL) Mass spectra are used to determine the relative atomic masses of elements from their isotopic composition.
MAKING CONNECTIONS
MAKING CONNECTIONS
Structure 1.3—What determines the different chemical properties of atoms?
Structure 3.1—How does the atomic number relate to the position of an element in the periodic table?
Nature of science, Reactivity 3.4—How can isotope tracers provide evidence for a reaction mechanism?
(AHL) Structure 3.2—How does the fragmentation pattern of a compound in the mass spectrometer help in the determination of its structure?
Page updated
Google Sites
Report abuse