Chap 5 MC practice pretest

Multiple Choice

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