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Please select a Team. Females Those that aren’t female. The order of elements in the modern periodic table is based on. the number of protons in the nucleus. the electric charge of the nucleus. the number of neutrons in the nucleus.

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please select a team
Please select a Team.
  • Females
  • Those that aren’t female
the order of elements in the modern periodic table is based on
The order of elements in the modern periodic table is based on
  • the number of protons in the nucleus.
  • the electric charge of the nucleus.
  • the number of neutrons in the nucleus.
atoms of elements that are in the same group have the same number of
Atoms of elements that are in the same group have the same number of
  • protons.
  • neutrons.
  • valence electrons.
  • protons and neutrons.
semiconductors are elements that
Semiconductors are elements that
  • have large atomic masses but small atomic numbers.
  • do not form compounds.
  • can conduct heat and electricity under certain conditions.
  • are extremely hard.
carbon and other nonmetals are found in which area of the periodic table
Carbon and other nonmetals are found in which area of the periodic table?
  • on the left-most side
  • on the right side
  • in the middle column of the periodic table
  • in the bottom rows
in mendeleev s periodic table elements in each column had similar
In Mendeleev’s periodic table, elements in each column had similar
  • Physical properties.
  • Chemical properties.
  • Both of these
  • None of these
magnesium mg 12 is located to the right of sodium na 11 because mg has
Magnesium (Mg #12) is located to the right of sodium (Na #11) because Mg has
  • fewer protons.
  • no neutrons.
  • no protons.
  • more protons.
as you move from left to right across the periodic table elements
As you move from left to right across the periodic table, elements
  • become less metallic.
  • have a lower atomic number.
  • have a lower atomic weight.
  • become more metallic.
each column of the periodic table is
Each column of the periodic table is
  • an element.
  • a group.
  • an isotope.
  • a period.
the periodic law states that elements that have similar properties appear
The periodic law states that elements that have similar properties appear
  • to the left of each other.
  • to the right of each other.
  • at every tenth element.
  • at regular intervals and then repeat.
what is the location of elements in the periodic table related to
What is the location of elements in the periodic table related to?
  • color
  • number of neutrons
  • atomic weight
  • electron configuration
an electron jumps up or down to a new energy level when
An electron jumps up or down to a new energy level when
  • the atom becomes charged.
  • the atom becomes unstable.
  • the electron’s location is pinpointed.
  • the atom gains or loses energy.
which of the following statements is not true
Which of the following statements is not true?
  • An s orbital can hold two electrons.
  • Each of 5 dorbitals can hold up to two electrons.
  • Each of 7 forbitalscan hold up to three electrons.
  • Each of 3 porbitalscan hold two electrons.
an emission line spectrum is produced when an electron moves from one energy level
An emission line spectrum is produced when an electron moves from one energy level
  • to a higher energy level.
  • to a lower energy level.
  • into the nucleus.
  • to another position in the same sublevel.
slide29
Because excited hydrogen atoms always produce the same line-emission spectrum, scientists concluded that hydrogen
  • had no electrons.
  • did not release photons.
  • released photons of only certain energies.
  • could only exist in the ground state.
for an electron in an atom to change from the ground state to an excited state
For an electron in an atom to change from the ground state to an excited state,
  • energy must be released.
  • energy must be absorbed.
  • radiation must be emitted.
  • the electron must make a transition from a higher to a lower energy level.
if electrons in an atom have the lowest possible energies the atom is in the
If electrons in an atom have the lowest possible energies, the atom is in the
  • ground state.
  • inert state.
  • excited state.
  • radiation-emitting state.
the electron in a hydrogen atom has its lowest total energy when the electron is in its
The electron in a hydrogen atom has its lowest total energy when the electron is in its
  • neutral state.
  • excited state.
  • ground state.
  • quantum state.
the set of orbitals that are dumbbell shaped and directed along the x y and z axes are called
The set of orbitals that are dumbbell shaped and directed along the x, y, and z axes are called
  • d orbitals.
  • p orbitals.
  • f orbitals.
  • s orbitals.
a spherical electron cloud surrounding an atomic nucleus would best represent
A spherical electron cloud surrounding an atomic nucleus would best represent
  • an s orbital.
  • a px orbital.
  • a combination of px and py orbitals.
  • a combination of an s and a px orbital.
the major difference between a 1 s orbital and a 2 s orbital is that
The major difference between a 1s orbital and a 2s orbital is that
  • the 2s orbital can hold more than 2 electrons.
  • the 2s orbital has a slightly different shape.
  • the 2s orbital is at a higher energy level.
  • the 1s orbital can have only one electron.
slide40
The letter designations for the first four sublevels with the maximum number of electrons that can be accommodated in each sublevel are
  • s:2, p:4, d:6, and f:8.
  • s:1, p:3, d:5, and f:7.
  • s:2, p:6, d:10, and f:14.
  • s:1, p:2, d:3, and f:4.
slide44
In the electron configuration for scandium (atomic number 21), what is the notation for the three highest-energy electrons?
  • 3d1 4s2
  • 4s3
  • 3d3
  • 4s2 4p1
slide45
Which of the following lists atomic orbitals in the correct order they are filled according to the Aufbau principle?
  • 1s 2s 2p 3s 4s 3p 3d 4p 5s
  • 1s 2s 2p 3s 3p 4s 3d 4p 5s
  • 1s 2s 2p 3s 3p 4s 4p 3d 4d
  • 1s 2s 2p 3s 3p 3d 4s 4p 5s
the element with electron configuration 1 s 2 2 s 2 2 p 6 3 s 2 3 p 2 is
The element with electron configuration 1s2 2s2 2p6 3s2 3p2 is
  • Mg (Z = 12).
  • C (Z = 6).
  • S (Z = 16).
  • Si (Z = 14).
slide47
The electron configuration for the carbon atom (C) is 1s2 2s2 2p2. The atomic number of carbon is
  • 3.
  • 6.
  • 11.
  • 12.
which of the following elements is an alkali metal1
Which of the following elements is an alkali metal?
  • Magnesium (# 12)
  • Fluorine (#9)
  • Titanium (#22)
  • Lithium (#3)
  • Neon (#10)
which of the following elements is an alkaline earth metal1
Which of the following elements is an alkaline-Earth metal?
  • Magnesium (# 12)
  • Fluorine (#9)
  • Titanium (#22)
  • Lithium (#3)
  • Neon (#10)
which of the following elements is a transition metal
Which of the following elements is a transition metal?
  • Magnesium (# 12)
  • Fluorine (#9)
  • Titanium (#22)
  • Lithium (#3)
  • Neon (#10)
which of the following elements is a halogen
Which of the following elements is a halogen?
  • Magnesium (# 12)
  • Fluorine (#9)
  • Titanium (#22)
  • Lithium (#3)
  • Neon (#10)
which of the following elements is a noble gas
Which of the following elements is a noble gas?
  • Magnesium (# 12)
  • Fluorine (#9)
  • Titanium (#22)
  • Lithium (#3)
  • Neon (#10)
what is the electron configuration for nitrogen atomic number 7
What is the electron configuration for nitrogen, atomic number 7?
  • 1s2 2s2 2p3
  • 1s2 2s3 2p2
  • 1s2 2s3 2p1
  • 1s2 2s2 2p2 3s1
the electron notation for aluminum atomic number 13 is
The electron notation for aluminum (atomic number 13) is
  • 1s2 2s2 2p3 3s2 3p3 3d1.
  • 1s2 2s2 2p6 3s2 2d1.
  • 1s2 2s2 2p6 3s2 3p1.
  • 1s2 2s2 2p9.
slide56
If the s and p orbitals of the highest main energy level of an atom are filled with electrons, the atom has a(n)
  • electron pair.
  • octet.
  • empty d orbital.
  • electron in an excited state.
the number of electrons in the highest energy level of the argon atom atomic number 18 is
The number of electrons in the highest energy level of the argon atom (atomic number 18) is
  • 10.
  • 2.
  • 6.
  • 8.
slide58
If an element has an octet of electrons in its highest main energy level, there are ____ electrons in this level.
  • 2
  • 8
  • 10
  • 32
an element with 8 electrons in its highest main energy level is a n
An element with 8 electrons in its highest main energy level is a(n)
  • octet element.
  • third period element.
  • Aufbau element.
  • noble gas.
slide60

Because they differ in numbers of protons in their nuclei and in numbers of electrons in their filled inner energy levels, elements in a group

  • have different charges.
  • are not exactly the same.
  • are very interactive.
  • are inert.
the three main groups of elements are metals nonmetals and
The three main groups of elements are metals, nonmetals, and
  • inert gases.
  • alkali metals.
  • radioactive isotopes.
  • metalloids.
most elements are
Most elements are
  • metals.
  • nonmetals.
  • metalloids.
  • semiconductors.
elements that do not conduct heat and electricity well are called insulators or
Elements that do not conduct heat and electricity well are called insulators or ____.
  • metals.
  • nonmetals.
  • metalloids.
  • semiconductors.
most elements on the right side of the periodic table are
Most elements on the right side of the periodic table are
  • semiconductors.
  • metals.
  • nonmetals.
  • metalloids.
which of the following is not true of noble gases
Which of the following is not true of noble gases?
  • They are highly reactive.
  • They exist as single atoms.
  • They belong to Group 18.
  • They are nonmetals.
when can semiconductors conduct heat and electricity
When can semiconductors conduct heat and electricity?
  • under all conditions
  • under almost all conditions
  • under some conditions
  • under no conditions
elements that share properties of both metals and nonmetals are called
Elements that share properties of both metals and nonmetals are called
  • ions.
  • periods.
  • semiconductors.
  • valences.
which statement about noble gases is correct
Which statement about noble gases is correct?
  • They form compounds with very bright colors.
  • They exist as single atoms rather than as molecules.
  • They are highly reactive with both metals and nonmetals.
  • They are extremely rare in nature.
group 18 noble gases are relatively inert because
Group 18 noble gases are relatively inert because
  • they readily form positive ions.
  • they can have either a positive or a negative charge.
  • their outermost energy level is missing one electron.
  • their s and p orbitals are filled.
which is not a family of the periodic table
Which is not a family of the periodic table?
  • alkaline-earth metals
  • Transition metals
  • halogens
  • noble gases
the charge of an atom is
The charge of an atom is
  • positive.
  • neutral.
  • negative.
  • unbalanced.
the charge of a compound is
The charge of a compound is
  • positive.
  • neutral.
  • negative.
  • unbalanced.