What charge does an electron have?
Neutral
positive
Negative
none of the above
Which scientist’s model suggested that electrons orbit the nucleus in specific energy levels?
J.J. Thompson
James Chadwick
Niels Bohr
Ernest Rutherford
the layer of gas around the Earth
atmosphere
humidity
how far you can see, it depends on the atmospheric conditions or darkness
visibility
temperature
how hot it is
temperature
humidity
the study of the weather
climatology
meteorology
In which atomic model are electrons embedded within a positively charged "pudding"?
Modern quantum model
Rutherford's model
Thompson's model
Bohr's model
how much water vapour there is in the atmosphere
temperature
humidity
Which of these particles has no electrical charge?
neutron
none of the above
electron
proton
Which particle has a positive charge?
Electron
Neutron
Proton
None of the above
Used to measure atmospheric pressure
barometer
thermometer
What was the primary conclusion of Rutherford's gold foil experiment?
Atoms are indivisible particles.
Electrons are scattered randomly in a positive sphere
atom is mostly empty space with a dense + charged nucleus
The mass of an atom is evenly distributed.
rain, hail or snow which falls from clouds
precipitation
humidity
Which statement is true about the mass of subatomic particles?
Electrons have less mass than protons.
Neutrons have less mass than electrons.
Electrons have more mass than protons.
Protons have less mass than electrons.
Used to measure wind
thermometers
anemometers
Who proposed the atomic model with a nucleus and electrons surrounding it?
J.J. Thompson
Niels Bohr
Ernest Rutherford
James Chadwick
Which of the following particles is found in the nucleus of an atom?
Neutron
proton
Electron
proton and neutron
In Rutherford's gold foil experiment, most alpha particles passed straight through the foil. What did this observation suggest?
Electrons are in fixed orbits.
Atoms have a lot of empty space.
Atoms have a lot of empty space.
Atoms are densely packed with particles.
measure humidity
hygrometer
barometer