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WorksheetsChapter 16 Properties of Atoms and the Periodic Table
Total questions: 40
Worksheet time: 20mins
Each energy level of an atom has a maximum number of _____ it can hold.
neutrons
electrons
quarks
protons
Dot diagrams are used to represent
atomic number.
the structure of the nucleus.
outer electrons.
isotopes.
Particles of matter that make up protons and neutrons are
quarks.
isotopes.
electrons.
atoms.
A chemical symbol represents the
structure of an element.
type of an element.
name of an element.
reaction of an element.
Horizontal rows of the periodic table are called
clusters.
families.
periods.
groups.
Atoms of the same element with different numbers of neutrons are called
isotopes.
metalloids.
transition elements.
radioactive.
A particle that moves around the nucleus is a(n)
ion.
electron.
proton.
neutron.
isotope.
Elements in groups 3 through 12 are called
noble gases.
transition elements.
isotopes.
alkali metals.
metalloids.
To accelerate protons in the study of subatomic particles, the
a television is used.
the Quark is used.
the Tevatron is used.
a temanite is used.
the Pentagon is used.
A certain atom has 9 protons, 9 electrons, and 10 neutrons. What is its mass number?
9
10
18
19
28
Elements arranged in vertical columns in the periodic table are called
states of matter.
periods.
ions.
groups.
The region around the nucleus occupied by the electrons is called the
nucleus.
particle accelerator.
negative zone.
electron cloud.
The weighted average of the mass numbers of all the isotopes that occur in nature for a particular element is the
atomic number.
number of neutrons.
number of electrons.
atomic mass.
A diagram showing only outer energy level electrons is called
a Bohr model.
families in a group.
an electron dot diagram.
Democritus model.
The number of protons in an atom is called the
atomic number.
atomic mass.
electron cloud.
atomic accelerator.
How was Mendeleev's first periodic table organized?
increasing atomic masses
increasing atomic number
from metals to nonmetals
according to their state of matter
How is the modern day periodic table organized?
increasing atomic masses
increasing atomic number
from metals to nonmetals
according to their state of matter
Atoms of the same element that have different numbers of neutrons are called
isomorph.
ions.
isotopes.
quarks.
Isotopes are named with their ___________ in order to distinguish them from the common form of the element.
proton number
atomic number
number of quarks
mass number
electron number
What are Boron-10 and Boron-11 examples of?
Quarks
Neutrons
Isotopes
Mendeleev's missing elements
The mass of _______ is about equal to the mass of a proton.
a neutron
an electron
a quark
an element
The maximum number of electrons in the second energy level of an atom is
2
8
18
32
The isotopes of carbon are carbon-12 and carbon-14. These isotopes differ from one another by two
neutrons.
electrons.
protons.
quarks.
________ are poor conductors of heat and electricity.
Metals
Nonmetals
Copper
Metalloids
Seven electrons in the outermost energy level is characteristics of a
nonmetal.
metal.
transition metal.
alkaline earth metal.
______ can be produced by bombarding protons with protons.
neutrons.
quarks.
metals.
isotopes.
Elements having three or fewer electrons in the outer energy level are classified as
metals.
nonmetals.
gases.
metalloids.
The atomic masses of the elements are not whole value numbers because of the existence of
ions.
quarks.
isotopes.
neutrons.
The identity of an element is determined by the number of
electrons.
protons.
neutrons.
quarks.
According to present atomic theory, the location of an electron in an atom is best represented by
a probability cloud.
a nucleus.
a particle accelerator.
quarks.
As you move from left to right in a row of the periodic table,
metallic properties increases.
metallic properties decreases.
atomic masses decrease.
valence electrons decrease.
The sum of the number of protons and the number of neutrons in an atom is the
atomic number.
particle accelerator.
mass number.
probability cloud.
The central core of an atom is called
the probability cloud.
the hub.
the nucleus.
the particle accelerator.
The chart showing the classification of elements according to their properties and increasing atomic numbers is called the periodic table.
True
False
The symbol for chlorine is
C.
Cl.
Co.
Ca.
The mass of the ________ is much smaller than the mass of the neutron or proton.
electron
element
atom
isotope
The atoms in group 18, except helium, have outer energy levels that contain _________ electrons.
2
8
18
32
How many protons are in the given element?
17
35
36
19
What is the number of neutrons in the given element?
5
6
11
10
Complete the first row of the table.
1; 1; 1; 0
2; 1; 1; 2
3; 3; 1; 2
1; 2; 3; 1
