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Topic 3 - The Atomic Structure
22. Comparing particles of an ion to its neutral atom: Recalling concept facts and definitions
1. A positive ion is formed when a neutral atom
1) Loses electrons 3) Gains electrons
2) Loses protons 4) Gains electrons
2. A neutral atom can become a positive charge ion by
1) Losing neutrons 3) Losing protons
4) Losing electrons
2) Losing energy
2-
3. A neutral oxygen atom ( O ) differs from an ion of oxygen ( O ) in that the atom has
3) Fewer protons
1) More protons
2) More electrons 4) Fewer electrons
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4. Compared to Be ion, a Be atom has
1) More protons 3) Fewer protons
2) More electrons
4) Fewer electrons
5. Compared to a neutral nonmetal, a negative ion of the same nonmetal atom has
1) More electrons
3) More protons
2) Less electron 4) Less protons
6. When an atom becomes a positive ion, the radius of the atom
1) Remains the same 2) Increases 3) Decreases
7. When an atom becomes a negative ion, the size of the atom
1) Remains the same 2) Increases 3) Decreases
8. A nonmetal atom is likely to
1) Lose electrons and become a positive ion
2) Gain electrons and become a positive ion
3) Lose electrons and become a negative ion
4) Gain electrons and become a negative ion
9. Which change occurs as a metallic atom loses electrons and becomes a positive ion?
1) The ion has less electron and a smaller size than the atom
2) The ion has less electron and a bigger size than the atom
3) The ion has more electrons and a smaller size than the atom
4) The ion has more electrons and a bigger size than the atom
10. Which changes occur as an atom becomes a positively charge ion?
1) The atom gains electrons, and the number of protons increases
2) The atom gains electrons, and the number of protons remains the same
3) The atom loses electrons, and the number of protons decreases
4) The atom loses electrons, and the number of protons remains the same
11. Which statement is correct as a nonmetallic element gains electron and becomes a negative ion?
1) The ion has less electron and smaller size than the atom
2) The ion has less electron and a bigger size than the atom
3) The ion has more electrons and a smaller size than the atom
4) The ion has more electrons and a bigger size than the atom
12. Compared to a negative ion, a neutral atom of the same element
1) Is smaller because it has less electrons
2) Is smaller because it has more electrons
3) Is bigger because it has less electrons
4) Is bigger because it has more electrons
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 179
Topic 3 - The Atomic Structure
22. Comparing particles of an ion to its neutral atom: Recalling concept facts and definitions
1. A positive ion is formed when a neutral atom
1) Loses electrons 3) Gains electrons
2) Loses protons 4) Gains electrons
2. A neutral atom can become a positive charge ion by
1) Losing neutrons 3) Losing protons
4) Losing electrons
2) Losing energy
2-
3. A neutral oxygen atom ( O ) differs from an ion of oxygen ( O ) in that the atom has
3) Fewer protons
1) More protons
2) More electrons 4) Fewer electrons
Teacher Preview Copy
Teacher Preview Copy
0
2+
4. Compared to Be ion, a Be atom has
1) More protons 3) Fewer protons
2) More electrons
4) Fewer electrons
5. Compared to a neutral nonmetal, a negative ion of the same nonmetal atom has
1) More electrons
3) More protons
2) Less electron 4) Less protons
6. When an atom becomes a positive ion, the radius of the atom
1) Remains the same 2) Increases 3) Decreases
7. When an atom becomes a negative ion, the size of the atom
1) Remains the same 2) Increases 3) Decreases
8. A nonmetal atom is likely to
1) Lose electrons and become a positive ion
2) Gain electrons and become a positive ion
3) Lose electrons and become a negative ion
4) Gain electrons and become a negative ion
9. Which change occurs as a metallic atom loses electrons and becomes a positive ion?
1) The ion has less electron and a smaller size than the atom
2) The ion has less electron and a bigger size than the atom
3) The ion has more electrons and a smaller size than the atom
4) The ion has more electrons and a bigger size than the atom
10. Which changes occur as an atom becomes a positively charge ion?
1) The atom gains electrons, and the number of protons increases
2) The atom gains electrons, and the number of protons remains the same
3) The atom loses electrons, and the number of protons decreases
4) The atom loses electrons, and the number of protons remains the same
11. Which statement is correct as a nonmetallic element gains electron and becomes a negative ion?
1) The ion has less electron and smaller size than the atom
2) The ion has less electron and a bigger size than the atom
3) The ion has more electrons and a smaller size than the atom
4) The ion has more electrons and a bigger size than the atom
12. Compared to a negative ion, a neutral atom of the same element
1) Is smaller because it has less electrons
2) Is smaller because it has more electrons
3) Is bigger because it has less electrons
4) Is bigger because it has more electrons
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 179
