ndicate whether each of the following statements about atomic structure is true

Question

ndicate whether each of the following statements about atomic structure is true or false. 1. A neutral oxygen atom (atomic number = 8) has 8 electrons located in 2 different electron orbitals. 2. All atoms have a nucleus consisting of protons and neutrons, except hydrogen, the smallest atom, which usually has only one neutron and no protons in its nucleus. 3. An atom consists of a central nucleus surrounded by electrons that are in constant motion. 4. Almost all of the mass of an atom is concentrated in its orbitals. 5. The orbital of an electron is the volume of space where the electron is most likely to be found. 6. Almost all of the volume of an atom is empty space. 7. The reactivity or chemical behavior of an atom depends primarily on the number of neutrons it has. 8. Modern physics indicates that we cannot determine the exact location of a particular electron at any given time. In fact, it could be anywhere from very close to the nucleus to infinitely far away. 9. Electrons are maintained in their orbitals by their attraction to the positively charged nucleus. 10. Atomic orbitals represent probability distributions for electrons and come in a variety of shapes.

Explanation / Answer

1. False 2. False 3. True 4. False 5. True 6. True 7. False 8. False 9. True 10. True

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