The transition elements are found in the f-block of the periodic table. T or f Tr
u
e Fa
ls
e 2The shorthand electron configuration for sulfur is [He][Ne]3s23p4.
. True Fals
e 3The number of valence electrons in the helium atom is
. 8 7 2 1 4125Sb is the symbol for an isotope of seaborgium.
. True Fals
e 5The atomic mass of an element is the:
. combination of neutrons and
protons in an atom of that element weighted average of the masses of
known, naturally-occurring
isotopes of an element number of electrons in an atom of
that element number of protons in an atom of
that element 6To achieve an octet in the valence energy level, a hydrogen atom will gain seven electrons.
. True Fals
e 7To achieve an octet in the valence energy level, a nitrogen atom will lose five electrons.
. True Fals
e 8If a copper atom loses two electrons, the name of the copper ion is:
. copper (I)
ion copper (II)
ion cupride ion copper ion 9An element's atomic mass depends on the percent abundances of its isotopes on Earth.
. True Fals
e 1 To achieve an octet of valence electrons, an iodine atom will become an ion with what
0 charge?
. - 2 - 1 + 1 + 2 1 The halogen family elements possess six electrons in the valence energy level.
1 . True Fals
e 1 Which of the following groups of elements contains the fewest valence electrons per atom?
2
. Alkaline earth
metals Chalcogens Halogens Noble gases 1 Which of the following elements is not among the noble gases?
3
. Krypto
n Xenon Heliu
m Boron 1 What is the name of the group (family) that includes the elements radium, strontium, and
4 magnesium?
. noble gases metals alkaline earth
metals alkali metals 1 The names of monatomic anions end with "-ide," as in fluoride (F -).
5
. True Fals
e 1 Classify the following elements as alkali, alkaline earth, or halogen.
6
. abc 1 alkali
. a. iodin
e abc 2 alkalin
. e earth abc 3 haloge
. n b calciu
. m c potas
. sium 1 Which of the following is not true of the chalcogen group?
7
. atoms of this group have six
electrons in the outermost s and p
sub-levels includes sulfur includes only nonmetals includes metalloids 1 Which direction do periods go on the periodic table?
8
. up and down across the table diagonally corner to
corner down 1 To achieve an octet, the phosphorus atom forms an ion. The name of this ion is:
9
. phosphoride
ion phosphic ion phosphorous
ion phosphide
ion 2 The symbol for the mercury (II) ion is Hg2+.
0
. True Fals
e 2 To name a variable charge monatomic cation:
1
. –list the element name followed by
a Roman numeral to represent the
ion charge –drop the ending of the element
name and replace it with the suffix
"-ide" –list the element name followed by
the word "ion" –add the prefix "hyper" and the
suffix "-ate" to the element name 2 It is possible for the transition metal zinc to form more than one possible ion.
2
. True Fals
e 2 To achieve an octet in the valence energy level, a neon atom will gain electrons.
3
. True Fals
e 2 Elements that are usually malleable, ductile, and good conductors of heat and electricity
4 are called:
. metals semimet
als nonmeta
ls metalloid s 2 Mendeleev's periodic law has been restated to say that when the elements are arranged in
5 order of increasing atomic number, there is a periodic pattern in their chemical and
. physical properties. True Fals
e 2 Which of the following four elements has the smallest radius?
6
. potassium (K) francium (Fr) magnesium
(Mg) nitrogen (N) 2 The abbreviated electron configuration for cesium is [Kr] 5s24d105p66s1.
7
. True Fals
e 2 Pa is the symbol for the element Pennsylvanium.
8
. True Fals
e 2 What is the correct Lewis dot structure for a single oxygen atom?
9
. 3 Helium is a noble gas and consequently possesses a complete valence of eight electrons.
0
. True Fals
e 3 Which of the following is formed when a barium atom achieves an octet?
1
. Ba 2 Ba
- 2 Ba
+ 2 Ba 3 Which element has the electron configuration 1s22s22p63s1?
2
. magnesi
um sodium boron aluminu
m 3 Which of the following elements has the highest ionization energy?
3
. chlorin
e silicon sulfur seleniu
m 3 What is the periodic trend in atomic radius?
4
. increases left to right across the
periodic table and decreases down
a group increases right to left across the
periodic table and decreases down
a group increases left to right across the
periodic table and increases down
a group increases right to left across the
periodic table and increases down
a group 3Which information was NOT known when Dmitri Mendeleev first devised his periodic table 5 in 1869?
. shared chemical properties among
small groups of elements the tendency of elements to
combine with other elements in
fixed, whole-number ratios atomic weights for all then-known
elements atomic numbers and the existence
of subatomic particles

 

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