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Questions and Answers
Which of the following statements accurately describes how the nucleus was discovered?
Which of the following statements accurately describes how the nucleus was discovered?
- Scientists observed the deflection of alpha particles in the gold foil experiment (correct)
- Scientists used X-ray diffraction to determine the structure of the atom
- Scientists observed the movement of electrons in an atom using an electron microscope
- Scientists conducted experiments with cathode rays and discovered the presence of a positively charged particle in the atom
What is the atomic number equivalent to in the periodic table?
What is the atomic number equivalent to in the periodic table?
- The number of neutrons in an atom
- The number of electrons in an atom
- The number of protons in an atom (correct)
- The number of isotopes in an atom
How can you determine the number of electrons in an atom using the periodic table?
How can you determine the number of electrons in an atom using the periodic table?
- By adding the atomic number and the atomic mass
- By looking at the period number in the periodic table
- By subtracting the atomic number from the atomic mass (correct)
- By dividing the atomic mass by the atomic number
How can you calculate the number of neutrons in an atom?
How can you calculate the number of neutrons in an atom?
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True or false: The discovery of the nucleus was a result of experiments conducted by Ernest Rutherford?
True or false: The discovery of the nucleus was a result of experiments conducted by Ernest Rutherford?
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True or false: The atomic number of an element is equivalent to the number of protons in its nucleus?
True or false: The atomic number of an element is equivalent to the number of protons in its nucleus?
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True or false: The number of electrons in an atom can be determined by looking at the element's position on the periodic table?
True or false: The number of electrons in an atom can be determined by looking at the element's position on the periodic table?
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