Question

which conclusion can be drawn from the rutherford gold foil experiment? *
*reference assignment graphic organizer - atomic models
atomic model illustration
a magnetic field is produced.
atoms are indivisible.
there is gas in the tube.
an atom contains a centrally - located, positive region surrounded by negative electrons.
an aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. what *
is its mass number?
mass number = protons + neutrons
40
14

Explanation:

Step1: Recall Rutherford's experiment conclusion

Rutherford's gold - foil experiment showed that atoms have a small, dense, positively - charged nucleus (centrally - located positive region) with electrons surrounding it.

Step2: Analyze each option

• Option 1: A magnetic field is produced. This is not related to Rutherford's gold - foil experiment conclusion.
• Option 2: Atoms are indivisible. This was disproven by Rutherford's experiment (showed internal structure of atom).
• Option 3: There is gas in the tube. This is not relevant to the atomic model conclusion from Rutherford's experiment.
• Option 4: An atom contains a centrally - located, positive region surrounded by negative electrons. This is in line with Rutherford's nuclear model of the atom.

Answer:

An atom contains a centrally - located, positive region surrounded by negative electrons.