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Atoms and the Periodic table
Atoms and the Periodic table
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1
According to modern atomic theory, it is nearly impossible to determine an electron's exact
color.
position.
mass.
charge.
2
Which of the following statements are NOT true?
Protons have a postive charge
neutrons have a negative charge
nucleus has a positive charge
neutrons have no charge
3
Ionization refers to the process of
losing or gaining electrons.
turning lithium into fluorine.
losing or gaining protons.
changing from one period to another.
4
Mendeleev's periodic table arranged elements by
atomic number
electronegativity
number of neutrons
atomic mass
5
Oxygen's atomic number is 8, this means that Oxygen has
a total of 8 N & 8 E
8 p in its nucleus
a total of 8 P & N
8 neutrons in its nucleus
6
all elements in the same group have the same...
number of valence electrons
mass number
atomic number
energy levels
7
What is the mass # of an element that has 19 protons, 19 electrons and 20 neutrons?
39
58
20
19
8
The periodic law states that elements that have similar properties appear
at every tenth element.
to the right of each other,
to the left of each other.
at regular intervals.
9
The charge of an atom is
positive.
negative.
unbalanced.
neutral.
10
A sodium atom, which has 11 electrons, has __________ electrons(s) in its third energy level.
0
2
1
8
11
Carbon and other nonmetals are found in which area of the periodic table?
in the middle column of the periodic table
on the left-most side
in the bottom rows
on the right side
12
How was Mendeleev's periodic table arranged?
Increasing atomic mass
increasing number of valence electrons
increasing energy levels
Increasing atomic number
13
according to Rutherford's model of the atom, electrons behave like
planets orbiting the sun
waves on a vibrating string
planets rotating on their axes
light energy in a vacuum
14
Atoms have no electric charge because they
have an equal number of electrons and protons
have an equal number of charged and noncharged particles
have neutrons in their nuclei
have an equal number of neutrons and protons
15
An element's atomic number is equal to its number of
valence electrons.
protons.
protons and neutrons.
neutrons.
16
In ________________ atomic model, negative electrons orbit the positively charged nucleus.
Thomson's
Dolton's
Rutherford's
Democritus's
17
Unlike the modern model of the atom, Bohr’s model states that
electrons contain orbitals
electrons move in set paths around the nucleus
atoms cannot be divided into smaller parts
electrons behave like waves
18
What are the 3 Main groups of Matter?
Airheads, Mints, and Tin Foil
Pencils, Luster, and Conductors
Metals, Non-Metals, and Metalloids
Malleable, Ductile, and Luster
19
Which of the following is not true of noble gases?
they exist in a single atom
they are nonmetals
they belong to group 18
they are highly reactive
20
Which of the following elements is an alkali metal?
Nitrogen
Carbon
Oxygen
Lithium
21
Valence electrons determine an atom's
periods.
mass.
chemical properties.
charge.
22
An atom's mass number equals the number of ....
protons plus the number of electrons.
protons minus the number of neutrons.
protons minus the number of electrons.
protons plus the number of neutrons.
23
Elements on the left side of the Periodic Table of Elements are usually...
metals
nonmetalloids
nonmetals
metalloids
24
Mendeleev is best known for inventing the Periodic Table
False
True
25
In his version of the periodic table, Mendeleev based his arrangment of the elements on an element's
chemical symbol.
atomic mass.
atomic number.
name.
26
An iron atom has an atomic mass of 56. Its atomic number is 26. How many neutrons does the iron atom have?
26
82
30
56
27
Who determined that atoms could be divided?
Thomson
Rutherford
Democritus
Dalton
28
Semiconductors are elements that
are very shinny
are brittle
have large atomic masses
can conduct under certain conditions
29
Elements that belong to the group have the same number of
total electrons
neutral electrons
valence electrons
inner electrons
30
Which statement about the atom's nucleus is correct?
The nucleus is made of electrons and has a positive charge.
The nucleus, has protons and neutrons, has negative charge.
The nucleus, has protons and neutrons, has positive charge.
The nucleus is made of electrons and has a negative charge.
31
A subatomic particle that has a negative charge is called a(n)
electrons.
element.
molecule.
compound.
32
What is an atom's nucleus made of?
only neutrons
protons and neutrons
only protons
anodes
33
Which is not a family of the periodic table?
noble gases
alkaline-earth metals
halogens
anions
34
Two different isotopes of an element have different
atomic numbers
numbers of electrons.
numbers of protons
numbers of neutrons
35
The order of elements in the periodic table is based on what?
the number of protons in the nucleus
atomic mass number
elements are randomly placed
how many electrons an atom has
36
Alkali metals are extremely reactive because they
are not solid at room temperature
have two valence electrons form compounds with magnesium
have really small atomic masses
have one valence electron that is easily removed
37
Atoms that gain or lose electrons are called
ions
molecules
isotopes
compounds
38
Atoms within the same group of the periodic table have similar __________.
Electrons
Neutrons
Protons
Valence Electrons
39
According to the new model of the atom, electrons behave like
planets rotating on their axes
planets orbiting the sun
light energy in a vacuum
waves on a vibrating string
