Which statement best describes the nucleus according to Rutherford's model?
The nucleus is small, dense, and positively charged.
In Rutherford's alpha-particle scattering, positively charged alpha particles were fired at a thin gold foil and their deflections were recorded on a fluorescent screen.
Most particles passed straight through, showing that an atom is largely empty space, but a very small fraction were deflected through large angles and a few even bounced almost straight back.
Such large-angle scattering can only occur when a fast, positive particle meets a tiny region carrying almost all the atomic mass and a concentrated positive charge, which repels it strongly.
Rutherford therefore proposed that every atom has a small, dense, positively charged core called the nucleus, with electrons revolving around it in the surrounding empty space.
Hence, the nucleus in Rutherford's model is best described as small, dense, and positively charged.
Similar Questions
According to Bohr’s model, electrons revolve around the nucleus in:
Two isotopes of chlorine are present in nature: chlorine-35 and chlorine-37. Which statement best explains their chemical behavior?
In Rutherford’s α-particle scattering experiment, the conclusion that most of the atom is empty space was drawn because:
Which statement about mass number is correct?
Which of the following best represents the characteristic properties of isotopes?
Which of the following correctly describes a proton?
Which of the following correctly defines the mass number of an atom?
Imagine a scientist is analyzing an unknown atom and finds it has a mass number of 24 and an atomic number of 12. If the atom gains two neutrons due to a nuclear reaction, what will be its new mass number?
Which of the following statements is/are CORRECT?
Statement I: The maximum number of electrons in any shell is given by 2n2.
Statement II: The third shell (n=3) can hold up to 12 electrons.
Which of the following statements about neutrons is correct?
Important Questions from Structure of Atom
- According to Bohr's model, electromagnetic radiations possess dual character properties behaving like:
- Which of the following is NOT an isotope of hydrogen atom?
- The atomic number of an element is equal to which of the following?
- Which of the following factors primarily determines the size of an atom?
- The atomic radius of hydrogen atom is
