Chap 5 MC practice pretest
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. A horizontal row of blocks in the periodic table is called a(n)
____ 2. Titanium, atomic number 22, has the configuration [Ar] 3d2 4s2. To what group does titanium belong?
____ 3. Refer to the figure above. To which group do fluorine and chlorine belong?
____ 4. To which group do lithium and potassium belong? Refer to the figure above.
____ 5. The person whose work led to a periodic table based on increasing atomic number was
____ 6. In Period 3 there are 8 elements. What sublevel(s) is (are) being filled?
____ 7. Mendeleev left spaces in his periodic table and predicted several elements and their
____ 8. The group of 14 elements in the sixth period that have occupied 4f orbitals is the
____ 9. Within a group of elements, as the atomic number increases, the atomic radius
____ 10. The electrons available to be lost, gained, or shared when atoms form molecules are called
____ 11. In nature, the alkali metals occur as
____ 12. Evidence gathered since Mendeleev's time indicates that a better arrangement than atomic mass for elements in the periodic table is an arrangement by
____ 13. Argon, krypton, and xenon are
____ 14. A positive ion is known as a(n)
____ 15. Atomic size is determined by measuring the
____ 16. Mendeleev's table was called periodic because the properties of the elements
____ 17. The periodic law states that the properties of elements are periodic functions of their atomic numbers. This means that the ____ determines the position of each element in the periodic table.
____ 18. The electron configurations of the noble gases from neon to radon in the periodic table end with filled
____ 19. The most reactive group of the nonmetals are the
____ 20. The atomic number of lithium, the first element in Group 1, is 3. The atomic number of the second element in this group is
____ 21. Which is the best reason that the atomic radius generally increases with atomic number in each group of elements?
____ 22. In a row in the periodic table, as the atomic number increases, the atomic radius generally
____ 23. In Group 2 elements, the valence electrons are in sublevel
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