Periodic table test
How many electrons are in the outermost shell of phosphorus A) 5 B) 15 C) 3 D) 8
A
How many electrons are in the outermost shell of strontium A) 2 B) 38 C) 8 D) 4
A
Although the effective nuclear charge in the outer shell of a neon atom is relatively strong (about +8), neon has no affinity for an additional electron because A) its electrons are pulled in closer to the nucleus B) it has one less shell containing electrons C) the nuclear charge is greater D) all of the above
B
As atoms get more massive they become smaller in size because A) more massive atoms have the same number of atomic shells B) more mass means more protons, which act to pull electrons in closer to the nucleus C) their masses don't become concentrated D) but they don't!
B
Each horizontal column in the periodic table corresponds to an A) atomic group B) atomic period
B
Each vertical column in the periodic table corresponds to an A) atomic period B) atomic group
B
How is it possible that as atoms get more massive they get larger in size A) the atomic nucleus becomes larger because it has more subatomic particles B) The more massive atoms have a greater number of atomic shells C) this is generally not the case with atoms D) More mass means more neutrons, which dilute the effective nuclear charge
B
How many atomic shells are completely filled for the chlorine ion, Cl^1- (Cl, atomic number 17) A) 2 B) 3 C) 17 D) 4
B
It is relatively easy to pull an electron away from a potassium atom, but very difficult to remove a second one because A) the first electron leaves a neutral atom but the second one leaves a negative ion B) the second electron experiences a far greater electric charge C) there are more neighboring electrons to repeal the first electrons to repel the first electron, fewer to repel the second D) the energy spent in removing the first electron is no longer available
B
The potassium ion K^1+, is smaller than the neutral potassium atom (K, atomic number 19) because A) its electrons are pulled in closer to the nucleus B) it has one less shell containing electrons C) the nuclear charge is greater D) all of the above
B
the inner transition metals are not listed in the main body of the periodic table because they A) have masses that are much greater B) have properties that are unlike those of other atomic groups C) are set off as the 8th and 9th periods D) are all radioactive
B
At room temperature and atmospheric pressure, examples of elements in all three phases can be found within the A) metals B) metalloids C) nonmetals D) none of the above
C
Elements of the periodic table are listed in order of A) atomic mass B) atomic size C) atomic number D) all of the above
C
Helium, He, and beryllium Be, are both second elements in their respective intervals. They are not placed directly above and below each other in the periodic table because they A) Have different atomic masses B) Have a different number of protons C) Do not have similar properties D) are arranged alphabetically
C
How many electrons are unpaired in the outermost shell of aluminum A) 2 B) 5 C) 3 D) 8
C
The alkali metals tend to form 1+ ions while the alkali- earth metals tend to form 2+ ions because A) alkali metals are less massive B) this is a random occurence C) the charges of these ions correspond to the number of valence electons that may be lost D) the ion an atom forms is always equal to the group number
C
Which of the following shows elements in order of increasing atomic size (Cl, atomic number 17; K atomic number 19; Br, atomic number 35; Rb atomic number 37; A) K<Br<Rb<Cl B) Br<Cl<Rb<K C) Cl<Br<K<Rb D) Rb<Clr<K<Br
C
Which type of solid would have the greatest tendency to shatter upon impact with a hammer? A) a metal B) a metalloid C) a nonmetal D) an inner transition element
C
a radioactive isotope of strontium is especially dangerous to humans because it tends to accumulate in bone marrow tissues. how does this relate to the organization of the periodic table? A) strontium is over twice as massive as calcium B) Strontium and calcium are in the same atomic period, hence they have similar physical and chemical properties C). Strontium and calcium are in the same atomic group, hence they have similar physical and chemical properties D) compared to calcium, strontium has an additional 18 electrons to cause harm
C
the number of elements In a period is A) unrelated to the electron capacity of noble gas shells B) half the electron capacity of the noble gas shell C) equal to the electron capacity of the noble gas shells D) twice the electron capacity of the noble gas shells
C
Although the effective nuclear charge in the outer shell of a neon atom is relatively strong, neon has no affinity for an additional electron because A) the ionization energy of neon is so great B) the repulsion forces from outer shell electrons is more significant C) the additional electron would turn neon into an ion D) there is no more room in its outermost occupied shell
D
Both nitrogen and phosphorus are able to attract the three more elecactrons to their outer shells because A) these electrons are able to pair with unpaired valence electrons B) the nuclear charge attracts them C) there are three more spaces available in their outermost shells D) all of the above
D
Horizontal rows in the periodic table are called
D
How many atomic shells are occupied by electrons in the gold atom (Au, atomic number 79) A) 5 B) 4 C) 7 D) 6
D
How many electrons are unpaired in the outermost shell of sulfur A) 8 B) 4 C) 16 D) 2
D
If an element of atomic number 118 is ever synthesized, it would be A) chemically inert B) a gas at room temperature C) radioactive D) all of the above
D
The valence electrons of elements in the same atomic period are similar because elements in the same atomic period have the same number of A) unpaired valence electrons B) paired valence electrons C) valence electrons D) none of the above
D
Transition metals are primarily used A) as fuel for nuclear reactors B) for transforming metalloids into metals C) as pigmentation for paints D) for structural purposes
D
With increasing atomic number, the atomic size of elements A) Increase continuously B) decrease continuously C) Increase gradually with periodic sudden drops D) Decrease gradually with periodic sudden increase
D
in the periodic table, the metalloids are found A) vertically to the far left hand side B) vertically to the far right hand side C) Horizontally below the main body D) diagnolly just right of the center
D