1.1 - inside the atom
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39 Terms
what is atomic charge?
the charge of an ion
what is atomic charge measured in?
coulombs
what is relative charge?
charge of a particle relative to the charge of a proton
what is mass measured in?
kg
what is relative mass?
mass of a particle relative to the mass of a proton / neutron
what is specific charge?
the charge of a particle / it’s mass
what is specific mass measured in?
coulombs / kilogram (ckg-1)
proton symbol
p
neutron symbol
n
electron symbol
e, e-, β
what is the atomic charge of a proton?
1.6 × 10-19 C
what is the relative charge of a proton?
+1
what is the mass of a proton?
1.67 × 10-27 kg
what is the relative mass of a proton?
1
what is the specific charge of a proton?
9.58 × 10-7 ckg-1
what is the antimatter for a proton?
antiproton (p-)
what is the atomic charge of a neutron?
0
what is the relative charge of a neutron?
0
what is the mass of a neutron?
1.67 × 10-27 kg
what is the relative mass of a neutron?
1
what is the specific charge of a neutron?
don’t got one
what is the antimatter of a neutron?
antineutron (n-)
what is the atomic charge of an electron?
-1.6 × 10-19 C
what is the relative charge of an electron?
-1
what is the mass of an electron?
9.11 × 10-31 kg
what is the relative mass of an electron?
0.0005
what is the specific charge of an electron?
1.76 × 1011 ckg-1
what is the antimatter of an electron?
e+
what is a nucleon?
proton or neutron in the nucleus
what makes an atom uncharged?
having an equal number of protons and neutrons
what is an ion?
a charged atom
what turns an uncharged atom into an ion?
losing or gaining electrons
what is an isotope?
atoms of the same element with different numbers of neutrons but the same number of protons
what is a nuclide?
each type of nucleus
isotopic notation
what is the atomic mass?
the number of nucleons (protons and neutrons)
what is atomic number?
the number of protons (and electrons, if the atom is stable)
how would you find the specific charge of an atom with an atomic mass of 14 and atomic number of 6?
do we consider electrons (both charge and mass) in specific charge equations?
no,
negligible mass (as they’re much smaller
only considering the nucleus (otherwise there would be no total charge for a stable atom)