Chemistry 10/5
As you move down the periodic table atoms get bigger. This is because ____________.
The atoms have more energy levels
Which group on the periodic table is known as the alkali metals?
1A
Based on electronegativity trends in the periodic table, which of the following is the most likely value for the electronegativity of silicon?
2.03
How many periods are in the periodic table?
7
Which of the following is has the largest atomic radius, Carbon, Nitrogen, Aluminum, or Neon?
Aluminum
The element with the lowest electronegativity in Period 3 is -
Ar (Argon)
Which statement correctly and completely identifies a trend?
Atomic radius decreases across a period and increases down a group.
Atoms with large ionization energies are __________________. More likely to lose an electron More likely to form positive ions Lacking valence electrons Less likely to lose an electron
Less likely to lose an electron
Identify the element as a metal, metalloid, or nonmetal. - lithium
Metal
Identify the element as a metal, metalloid, or nonmetal. - zinc
Metal
Identify the element as a metal, metalloid, or nonmetal. - germanium
Metalloid
Which accurately describes nonmetals? Often used in computer parts Both malleable and ductile Poor conductors of electricity Always solid at room temperature
Poor conductors of electricity
The alkaline earth metal with the lowest electronegativity is Fr Mg Ra Li
Ra
The atom with the largest atomic radius in Group 18 is -
Rn (Radon)
Is the electronegativity of barium larger or smaller than that of strontium?
Smaller
Which of the following will have a larger radius than Zinc?
Sr (Strontium)
ionization energy
The amount of energy required to remove an electron from an atom
Where on the periodic table would you expect to find atoms with the highest Ionization energy? Upper right Lower right Lower left Upper left
Upper right
What is a group in the periodic table? a horizontal row of elements in the periodic table a column on the periodic table
a column on the periodic table
Dimitri Mendeleev placed the elements in order of increasing atomic mass sublevel metallic property atomic number
atomic mass
Metals have the largest -
atomic radius only
Which has a larger ionization energy lithium or beryllium.
beryllium (Be)
Which of the elements below would be the easiest to remove an electron? calcium phosphorous magnesium aluminum
calcium
As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....
decreases
Atomic radius generally increases as we move __________.
down a group and from right to left across a period
Which atom has the largest atomic radius?
francium
atomic radius
half the distance between two nuclei of the same element
Atoms that have a high electronegativity, _______________.
hold on to their electrons more tightly.
Electronegativity is...
how good an atom is at attracting electrons
Ionization energy is...
how much energy it takes to remove an electron from an atom
Periodic Table - Electronegativity
https://docs.google.com/document/d/1cmQqGBEULhVJQRuADeoiP8vdnjTUivVkcFNEUPHKwjo/edit?usp=sharing
Periodic table
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Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.
increases, decreases
Which of the following is NOT a property of metals? malleable good conductor of heat and electricity ductile liquid at room temperature
liquid at room temperature
Which of the following is not a transition metal? magnesium, titanium, chromium, mercury
magnesium (Mg)
Is potassium a metal, nonmetal, metalloid, or something else?
metal
What is electronegativity?
the ability of an atom to attract electrons when the atom is in a compound
As you move across the periodic table atoms tend to get smaller because, ______________.
the atoms have more protons.
atomic number
the number of protons in the nucleus of an atom
mass number
the sum of the number of neutrons and protons in an atomic nucleus
Which section of the periodic table includes the elements copper, nickel, and iron?
transition metals
Metals are good conductors of heat and electricity.
true
Element with highest electronegativity
Fluorine (F)
Which has a larger atomic radius, At atom or Po?
Po
Group
A column on the periodic table
period
A horizontal row of elements in the periodic table
Which period or group includes uranium?
Actinide series
Which of the following is NOT a metalloid? Al Po B Si As
Al
Arrange oxygen, fluorine, barium, silicon, sulfur in order of increasing electronegativity.
Ba, Si, S, O, F
Which of the following is the most electronegative? Ca Be Mg Sr
Be
The alkaline earth metal with the highest ionization energy is
Beryllium
Which element listed below should have chemical properties similar to fluorine (F)? Li, Si, Br, Ne, Al
Br
Which of the following will have a lower ionization energy than Scandium (Sc)?
Calcium (Ca)
Which of the following will have a higher electronegativity than arsenic (As)?
Carbon (C)
Which of the elements below has the largest atomic radius? Lithium Astatine Fluorine Cesium
Cesium
Which has the greater electronegativity: Cl or Al?
Chlorine (Cl)
Which of the following is a Halogen? B In Cl Fe
Cl
The electronegativity of Cl is the highest in Period 2. Why?
Cl is the smallest and has the greatest effective nuclear charge
Hypothetical elements Z and X are compared. Element Z has a larger atomic radius than Element X. Based on this you could say:
Element Z is further to the left side of the periodic table AND/OR Element X is closer to the top of the periodic table
Elements Z and X are compared. Element Z is smaller than Element X. Based on this you could say: Element X is closer to the top of the periodic table Element Z is further to the right side of the periodic table Element X is further to the right side of the periodic table Element Z and X are probably in the same group
Element Z is further to the right side of the periodic table
Metals
Elements that are good conductors of electric current and heat (Left side of the periodic table).
Nonmetals
Elements that are poor conductors of heat and electric current (Right side of periodic table).
Metalloids
Elements that have properties of both metals and nonmetals.
Which has the greater electronegativity: H (Hydrogen) or F (Flourine)?
F (Flourine)
The element with the largest electronegativity in the halogens is -
Flourine (F)
Which of the following is the most Electronegative, Gallium, Phosporous, Fluorine, or Sulfur?
Fluorine
Element with largest atomic radius
Francium (F)
Which of the following will have a larger radius than silicon? Nitrogen Fluorine Gallium Phosphorous
Gallium
alkali metals
Group 1a
alkaline earth metals
Group 2a
Halogens
Group 7a
noble gases
Group 8A
Which of the following are poor conductors of heat and electricity? Transition elements Halogens Alkaline earth elements Metalloids
Halogens
Which of the following elements have the highest electronegativity? Noble gases Alkali metals Lanthanides Halogens Alkaline earth metals Transition metals
Halogens
Element with highest ionization energy
Helium (He)
Which has a smaller ionization energy sodium or potassium.
K (potassium)
Which has the greater electronegativity: N (Nitrogen) or C (Carbon)?
N (Nitrogen)
Name two elements that have properties similar to those of the element potassium.
Na, Li, Rb, Cs, Fr
Which element below requires the most energy to remove an electron? Ne O N Fr F
Ne
Which of the following is the least electronegative? Ne F O Fr N
Ne
Which periodic group has the smallest atomic radius?
Noble Gases
Identify the element as a metal, metalloid, or nonmetal. - fluorine
Nonmetal
Identify the element as a metal, metalloid, or nonmetal. - phosphorus
Nonmetal
