Flashcards
Chemistry module 2
Flashcards do conjunto (17)
- 1What charge does a proton have?Positive
- 2What is the relative mass of an electron?1/1836
- 3What is an isotope?Atoms of the same element with different numbers of neutrons and different masses.
- 4What is a cation?Atoms with fewer electrons than protons.
They have a positive charge. - 5What is an anion?Atoms with more electrons than protons.
They have a negative charge. - 6What is the relative isotopic mass?the mass of an isotope relative to 1/12th of the mass of an atom of carbon-12.
- 7What is the relative atomic mass?The weighted mean mass of an atom of an element relative to 1/12th of the mass of an atom of carbon-12.
- 8What is a mass spectrometer used for?To find the percentage abundance of the isotopes in a sample of an element.
- 9How does a mass spectrometer work?Vaporized, Ionized, Accelerated, Separated, Detected.
- 10How do you find the mass-to-charge ratio?relative mass of ion/
relative charge on ion - 11What is a binary compound?Contains 2 elements only.
- 12What is a polyatomic ion?An ion that contains atoms of more than one element bonded together.
- 13HydroxideOH^-
- 14SulfateSO4^2-
- 15AmmoniumNH4^+
- 16NitrateNO3^-
- 17What is a diatomic molecule?Contains two atoms bonded together.
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- AS level Business Studies FlashCards sobre Chemistry module 2, criado por kate mason em 31-03-2017.
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- kate mason
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