- 1. When the number of protons equals the number of electrons in an atom, the overall charge is
A) positive
B) negative
C) neutral
- 2. When atoms gain or lose electrons, they become
A) ions
B) brightly colored
C) completely different elements
D) isotopes
- 3. When atoms gain or lose neutrons, they become
A) completely different elements
B) isotopes
C) brightly colored
D) ions
- 4. I have two atoms. One has 12 protons, the other has 13. Is it possible that these two atoms could be the same element?
A) Yes
B) No
- 5. I have two atoms. One has 23 neutrons, the other has 24 neutrons. Is it possible that these two atoms could be the same element?
A) No
B) Yes
- 6. I have two atoms. One has 24 electrons, the other has 25 electrons. Is it possible that these two atoms could be the same element?
A) No
B) Yes
- 7. Do metals tend to gain or lose electrons?
A) gain
B) lose
- 8. Do nonmetals tend to gain or lose electrons?
A) lose
B) gain
- 9. Do metals tend to form positive ions or negative ions?
A) positive
B) negative
- 10. Do nonmetals tend to form positive ions or negative ions?
A) negative
B) positive
- 11. Where are metals located on the periodic table?
A) to the right of the stair-step line
B) to the left of the stair-step line
C) along the stair-step line
- 12. Which of the following is NOT a property of metals?
A) malleable
B) dull
C) good conductors of heat and electricity
D) ductile
- 13. The ability of a substance to be stretched into thin wires is -
A) wirey
B) skinny
C) ductile
D) malleable
- 14. The ability of a substance to be pounded into thin sheets, or shaped into a form is -
A) foil
B) flat
C) malleable
D) ductile
- 15. Which of the following is not a property of nonmetals?
A) dull
B) lustrous
C) brittle
D) poor conductors of heat and electricity
- 16. Substances that have properties of both metals and nonmetals are called -
A) alkali metals
B) transition metals
C) alkaline earth metals
D) metalloids
- 17. Where are nonmetals located on the periodic table?
A) to the right of the zig-zag line
B) along the zig-zag line
C) to the left of the zig-zag line
- 18. Where are the metalloids located on the periodic table?
A) along the stair-step line
B) to the left of the stair-step line
C) to the right of the stair-step line
- 19. Which of the following pieces of information tells how many energy levels an atom has?
A) the group number
B) the period number
C) the atomic number
D) the number of valence electrons
- 20. Which of the following pieces of information helps you to figure out how many valence electrons an atom has?
A) the period number
B) the number of energy levels
C) the group number
D) whether it is a solid, liquid, or gas
- 21. Draw the Bohr diagram of Boron on your own paper. What is the number of electrons on the second energy level?
A) 8
B) 11
C) 5
D) 3
E) 2
- 22. Draw the electron dot diagram of Magnesium on your paper. How many electrons are in the electron dot diagram for Magnesium?
A) 3
B) 2
C) 24
D) 12
- 23. Draw the Bohr diagram for Calcium on your paper. How many electrons are on the third energy level?
A) 1
B) 2
C) 4
D) 8
- 24. To draw the electron dot diagram, the only information I need to consider is the -
A) number of valence electrons
B) total number of electrons
C) period number
D) number of energy levels
- 25. What determines the number of rings or orbitals that is drawn on a Bohr diagram?
A) the number of valence electrons
B) the atomic number
C) the group number
D) the period number
- 26. Is it possible for there to be 8 electrons in the first energy level?
A) yes
B) no
- 27. An atom has 3 energy levels and 5 valence electrons. Draw the Bohr diagram on your paper, and determine the identity of the element. The element is -
A) Yttrium
B) Nitrogen
C) Silicon
D) Sulfur
E) Phosphorus
- 28. An element has 3 energy levels and 7 valence electrons. Draw the Bohr diagram on your paper, and determine the identity of the element. The element is -
A) Chlorine
B) Bromine
C) Selenium
D) Fluorine
E) Sulfur
- 29. An element has 4 energy levels. Is it possible for there to be only 6 electrons on the 2nd energy level?
A) no
B) yes
- 30. An element has 3 energy levels. What is the very least amount of total electrons that the element could have?
A) 2
B) 8
C) 11
D) 18
E) 3
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