Chemistry Ch. 6 Multiple Choice
atoms of elements in group 1 have ___ a. one electron in their outermost energy level b. two electrons in their outermost energy level c. seven electrons in their outermost energy level d. eight electrons in their outermost energy level
a.
what makes the d-block wider than either the s-block or the p-block a. the d-sublevel can hold ten electrons, making the d-block ten elements wide b. the d-block is the most researched area of the periodic table c. the elements in the d-block are more important than the elements in the rest of the table d. the elements in the d-block are all metals
a.
which of the following elements is a metalloid a. As b. Na c. W d. F
a.
why is helium included with the noble gases, even though it has only two valence electrons a. the p sub-orbital does not exist for period 1 b. helium was discovered first c. heliums missing electrons cause it to be lighter than air d. heliums electron configuration is incorrect
a.
atoms with large ionization energy values are ___ a. more likely to form positive ions b. less likely to form positive ions c. most likely to lose their outer electrons d. lacking valence electrons
b.
looking at oxygen on the periodic table, what can you say for certain about the elements two spaces to the left of oxygen a. the element is a liquid b. the element will have atomic number 6 c. the elements atomic weight will be 12 d. the elements name will begin with the letter M
b.
where would you expect to find the smallest atoms a. upper left b. upper right c. lower left d. lower right
b.
which element would you to expect to form a 3+ ion a. Be b. B c. C d. N
b.
which of the following is the general valence electron configuration for the alkaline earth elements a. ns1 b. ns2 c. ns1np2 d. ns2np2
b.
why are both hydrogen and cesium s-block elements, when hydrogen has one electron and cesium has 55 a. all blocks contain at least one element from each period b. blocks of elements on the periodic table are based only on an elements valence electrons c. the s-block includes only the most reactive elements d. the have identical electron configurations
b.
why are there no d-block elements until period 4 a. the d sub-orbital does not exist for the first 3 orbitals b. the d sub-orbital does not exist for the first two orbitals, but the 4s orbital fills before the 3d orbital c. the spots above the d-block represent undiscovered elements d. the d sub-orbital is unstable
b.
why was mendeleev's periodic table widely accepted a. he organized the first 14 known elements b. he predicted the existence and properties of undiscovered elements c. he was the first to notice a pattern of similar properties among elements d. his periodic table listed all of the elements in the correct order
b.
atoms that lose electrons to form positive ions are ___ a. nonmetals b. metalloids c. metals d. noble gases
c.
elements in the d-block are also known as ___ a. alkali metals b. alkaline earth metals c. transition metals d. lanthanide metals
c.
halogens are good disinfectants. which of the following is a halogen a. N b. O c. Cl d. Fe
c.
if the inner transition elements were placed in the space occupied by the heavy black line above, what would result a. electron configurations of the other elements would change b. there would be no effect c. the periodic table would be too wide to comfortably fit into most books d. more elements would become radioactive
c.
what characteristic do atoms in the same group of elements share a. they have the same atomic mass b. they have the same number of electron orbitals c. they have the same number of valence electrons d. they have similar physical properties
c.
why are the ionic radii generally larger for group 15 than for group 17 a. atoms in group 15 are larger than atoms in group 17 b. atoms in group 15 have more protons than atoms in group 17 c. ions forming from groups have a greater negative charge than ions forming from group 17 atoms d. atoms in group 15 are less likely to lose electrons than atoms in group 17
c.
why do atomic numbers jump by 15 from left to right in the section of the periodic table a. the missing elements have not yet been discovered b. the missing elements are all radioactive c. the missing elements form the lanthanide and actinide series, usually found below the periodic table d. the missing elements do not exist
c.
looking at the oxygen box on the periodic table, what can you say for certain about the element immediately to the right of oxygen a. the element is a gas b. the elements name will begin with the letter p c. the elements atomic weight will be 18 d. the element will have atomic number 9
d.
the ionic compound, sodium chloride, is formed from atoms of the elements sodium and chlorine. what happens to the size of each atom when it forms an ion a. sodium increases in size and chlorine increases in size b. sodium increases in size and chlorine decreases in size c. sodium decreases in size and chlorine decreases in size d. sodium decreases in size and chlorine increases in size
d.
what group generally has the greatest electronegativity a. alkali metals b. alkaline earth metals c. noble gases d. halogens
d.
which element has the lowest first ionization energy a. Li b. Na c. K d. Cs
d.
which group on the periodic table is known as the halogens a. group 1A b. group 2A c. group 8A d. group 7A
d.
