WorksheetsBJU Chemistry Test Chapter 6
Total questions: 89
Worksheet time: 7hrs 25mins
What chemist arranged the elements according to increasing atomic masses and discovered the relationship that he called the law of octaves ?
(The law of octaves is a generalization that states that when chemical elements are arranged in order of increasing atomic weight, every eighth element has similar properties to the first)
Henry Cavendish
John Newlands
Henery Moseley
Linus Pauling
Who was credited with developing the first ordered table of elements?
Henry Moseley
John Newlands
Dimitri Mendeleev
Antoine Lavoisier
Whose work resulted in the revision of the periodic law and the atomic number being used as the organizing factor for the elements of the periodic table?
Lord Rayleigh
Dimitri Medndeleev
John Dalton
Henry Moseley
Why do elements of the same group have similar physical and chemical properties?
The have a similar surface area
They have a similar electrical charge
They have a similar nuclear construction
They have a similar electron configuration
What is the only metal that is liquid at room temperature?
lithium
mercury
magnesium
barium
Atomic radius is defined as the distance from the center of the atoms nucleus to
it's innermost electron
it's outermost electron (Valence Electron)
its central electron
the outermost portion of the nucleus
Which has a smaller atomic radius, Calcium or Chlorine?
Calcium
Chlorine
Which property measures the energy required to remove an outermost electron?
electronegativity
ionic size
ionization energy
electron affinity
A larger atomic radius means
a smaller ionization energy
a larger ionization energy
stays the same
A smaller atomic radius means a
smaller ionization energy
larger ionization energy
Which property measures the attraction of bonded atoms to electrons?
Electronegativity
Ionization Energy
Electron Affinity
Ionic Size
Which of the following is the lightest and most abundant element in the universe, is extremely flammable in air, and is used in the industrial production of ammonia?
Sulfur
Hydrogen
Silicon
Helium
A sample of an unidentified element has a silvery luster, conducts electricity well, and is highly reactive. It is most likely one of the
alkali metals
transition metals
metalloids
halogens
The lanthanoid and actinoids compose what group on the periodic table?
inner transition metal
alkaline earth metal
alkali metal
transition metal
Semiconductors can also be called
metals
non-metals
metalloids
transition metals
Elements in the Carbon group have all the following physical and chemical properties except that
they can take only one form
they are solid only at room temperature
they have four Valence electrons
they have low reactivity
Aluminum, the post transition metals, has all of the following physical and chemical properties, except that
it has 3 valence electrons
it is highly conductive
it has a high density
it corrodes in the presence of atmospheric oxygen
Which of the following would NOT be a physical or chemical property of chromium?
it has a low melting point
it has one or two valence electrons
it is dense and hard
it can form cations with various cahrges
Existing as a diatomic molecule or triatomic gas, this element accounts for approximately 21% of the earth's atmosphere, is the most abundant element in earth's crust, and is essential for life for all animals and humans.
oxygen
phosphorus
helium
nitrogen
Generally, atomic radii increase when moving down a group or column in the periodic table.
true
false
The periodic trend for ionization energy is the opposite (inversely proportional) of atomic radii.
true
false
High electronegativities are associated with large ionization energies and high electron affinities
true
false
Graphite and Diamond are both composed of carbon
true
false
Nobel gases are the most reactive elements on the periodic table
true
false
Which 3 noble gases will sometimes form compounds with other elements?
radon
neon
xenon
helium
krypton
The elements in this family are soft, silvery, and very reactive with water.
Alkaline Earth Metals
Alkali Metals
Transition Metals
Lanthanides
Transition Metals
Inner Transition Metals
Metals
Metalloids
All elements in the same GROUP have the same number of ___.
protons
neutrons
atomic mass units
valence electrons
If a student observes a silvery solid that is malleable, good conductor, and ductile. It is a.....
nonmetal
metal
metalloid
Which of the following describes a nonmetal?
Reflects light
often brittle, breaks into pieces
conducts heat and electricity
Ductile
elements that are mostly geologic minerals that are dissolved slightly in water are called
alakaline-earth metals
transition metals
pnictogens
alkali metals
Which element is in period 4 family 11
Mercuy
Copper
Silver
Gold
Which element is in period 1 group 18?
Helium
Hydrogen
Neon
Lead
Which element is in period 3 and group 14?
Silicon
Helium
Mercury
Neon
Write the correct chemical symbol for Sodium.
(a)
Type the correct chemical symbol for Helium
(a)
Which element has a greater first ionization energy, Li or Ne?
Ne
Li
Which elements has a greater atomic radius?
Potassium (K)
Bromine (Br(
Which element has a greater electronegativity?
Na
Cl
Which element is the most reactive as well as the most ractivity?
Fluorine
carbon
Neon
Helium
Which of the following was a belief that matter was made of separate, discrete particles?
the continuous theory of matter
the law of definite proportion
the law of multiple proportions
atomism
J.J. Thompson concluded that every atom contained small, ___________ particles.
positively charged
negatively charged
neutrally charged
dense
Who formulated a new atomic model because of the discoveries made during an alpha particle experiment?
James Chadwick
Ernest Rutherford
J.J. Thompson
John Dalton
The element fluorine has all the following physical and chemical properties except that
it's very reactive
it has seven valence electrons
it has difficulty in forming compounds
it has a high electronegativity
Copper, nickel, zinc, platinum, and mercury are all examples of
transition metals
metalloids
nonmetals
halogens
Which of the following is not a physical or chemical property of an alkali metal?
it's a good conductor of heat
it has a low density
it is mildly reactive
it has one valence electron
Which of the following would not be a physical or chemical property of magnesium?
it is solid at room temperature
it has two valence electrons
it can gain electrons easily
it is a good conductor of heat
How does the size of a metal atom compare to its ion?
The atom is larger
The ion is larger
they are the same size
A valence electron is what?
The electron in the outer shell of an atom.
The electron in the inner shell of an atom.
The last electron.
The first electron.
The valence electron can
Cannot interact in a chemical reaction.
Can interact in a chemical reaction.
Atoms are electrically neutral when
They have a minimal charge.
They have a balanced number of protons and neutrons.
They have a balanced number of protons and electrons.
They have no valance electrons.
If an electron is removed, an ion becomes
An atom
Positive
Negative
Neutral
If an ion gains an electron, it becomes
Positive
Stable
Atomic
Negative
Cations have what type of charge?
Positive
Negative
What is the name for an ion when it gains an electron.
Anion
Cation
Anions have which type of charge?
Positive
Negative
ALL anions are
Metal
Transitional Metals
Nobel Gases
Non-Metal
Anions and Cations form what type of compound?
Covalent
Ionic
Balled
An ION is ____________ where the electrons DO NOT equal the protons.
charged
neutral
A cation will...
lose electrons
gain electrons
Potassium will lose...
one electron
two electrons
three electrons
Would Ca or Ca+2 have a smaller atomic radius
Ca+2
Ca
They would have the same radius
Mendeleev's periodic table arranged elements by
atomic number
atomic mass
number of neutrons
electronegativity
What newly discovered form of energy dud Henry Moseley use to determine the atomic numbers of elements?
X-Rays
Gamma Radiation
Alpha Particles
Microwaves
The elements that are placed along the stair step line are the ________
metals
non metals
metalloids
transition metals
The periodic law states that the properties of elements vary periodically with the atomic numbers.
True
False
Which of these is NOT typically found in a cell on the periodic table?
atomic number
electron structure
electronegativity
atomic mass
Which property measures the energy released when an electron joins the atom?
atomic number
ionic size
ionization energy
electronegativity
electron affinity
Atomic radius _____________ when moving down a group and _____________across the periods from left to right.
increases; decreases
increases; increases
decreases; decreases
decreases; increases
Which element has a greater atomic radius?
Li
Cs
Which element has a greater ionization energy?
Li
Fr
