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