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Periodic Table, Electron Configuration, & Bonding Flashcards | StudBud
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Periodic Table, Electron Configuration, & Bonding
Periodic Table, Electron Configuration, & Bonding
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Chapters 15-16 CPO #Physical Science Test Review
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Questions
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Answers
1
Transferring or sharing electrons between atoms forms:
bonds
alloys
mixtures
solutions
2
All of the following are characteristics of metals
EXCEPT
:
brittle
ductile
shiny
good conductors
3
Most of the elements in the periodic table can be described as:
halogens
metalloids
nonmetals
metals
4
Atomic number is:
the number of neutrons and protons in an atom
the number of electrons and protons in an atom
the number of electrons in an atom
the number of protons in an atom
5
The location of non-metals on the periodic table is on the:
top
bottom
right
left
6
Protons and neutrons are found grouped together in the:
periodic table
nucleus
electron cloud
charge
7
an atom contains ___ in various energy levels
protons
electrons
neutrons
ions
8
Elements in group 1 would LEAST likely bond with elements from which group?
group 17
group 16
group 2
9
What would the chemical formula be for a molecule made up of potassium (K
1+
) and oxygen (O
2-
)?
KO
K2O3
K2O
KO2
10
How many atoms of aluminum (Al), sulfur (S), and oxygen (O) are in each molecule of Al
2
(SO
4
)
3
?
2-Al, 1-S, 4-O
1-Al, 3-S, 4-O
2-Al, 3-S, 3-O
2-Al, 3-S, 12-O
11
lithium & oxygen. (Li) has an oxid. # of +1 and (O) has an oxid. # of -2. Type of Compound?
Mixture
Covalent
Atom
ionic
12
When an atom gains or loses electrons, it has an electrical charge. It is known as:
an ion
a hydrate
a free readical
a monoatomic molecule
13
Which of the following is a TRUE statement about atoms?
same element have the same # of e- & p+ but diff. # of n0
all atoms of the same element= same number of e-, p+, and n0
the # of neutrons in an atom is equal to the # of protons
atoms of diff. elements = different # of p+ in the nucleus
14
Compared to protons, electrons have:
much larger mass and the same charge
much smaller mass and opposite charge
much larger mass and opposite charge
about the same mass and opposite charge
15
Iron (Fe) has an atomic # of 26 and a mass number of 56. The total number of protons & neutrons
82
30
56
26
16
lithium & oxygen. (Li) has an oxid. # of +1 and (O) has an oxid. # of -2. Total of Oxid. #'s?
-1
0
-2
+1
17
The mass of an atom is determined mainly by the:
mass of the neutrons
mass of the electrons and neutrons
mass of the neutrons and protons
mass of the electrons
18
Atoms of the
same
element may contain:
a different # of protons & a different # of neutrons
same number of electrons but different number of protons
same # of protons but differ # of neutrons
same # of neutrons but diff # of protons
19
The location of metals on the periodic table is on the:
right
top
bottom
left
20
Nitrogen has an atomic number of 7 and a mass number of 14. How many electrons does it have?
14 OR 15
7
7 OR 8
21
21
A period’s number on the periodic table corresponds to the number of:
neutrons in the nuclei of atoms in the period
energy levels of the atom in the period
compounds that may be formed by an element in that period
22
Horizontal rows on the periodic table are called:
periods
columns
groups
23
The noble gases do not tend to form chemical bonds with other elements because they:
have been around longest on the earth
are chemically unstable
have completely filled energy levels
are unusually large atoms
24
Electrons with higher energy are located:
closer to the nucleus
in the nucleus
farther from the nucleus of the atom
at lower levels of the atom
25
A particle with zero charge found in the nucleus of an atom is called a(n):
neutron
electron
positron
proton
26
An example of a metalloid, elements with properties between metals and non-metals, is
copper
silicon
iron
oxygen
27
An atom has 5 protons in the nucleus. How many electrons on the 1st & 2nd energy levels
2, 2
2, 5
2, 7
2, 3
28
In which directions on the periodic table do the atomic masses of elements increase?
left to right and top to bottom
right to left and top to bottom
right to left and bottom to top
left to right and bottom to top
29
All lithium atoms contain the same number of
mass
neutrons
protons & neutrons
protons
30
The charge on a complete atom is equal to:
zero
number of electrons
Number of protons
31
The Mg atom becomes the ion, Mg
2+
, when it:
loses 2 protons
gains 2 protons
loses 2 electrons
gains 2 electrons
32
Ionic bonds form:
by sharing electrons
molecules
only between pairs of atoms
between oppositely charged atoms.
33
The atom of the element most likely to bond with a single atom of fluorine, atomic number 9, is
carbon, atomic number 6
lithium, atomic number 3
boron, atomic number 5
beryllium, atomic number 4
34
Atoms with the same atomic number but different atomic mass are called:
isotopes
subtypes
prototypes
ions
35
Transition metals include all of the following elements EXCEPT:
gold
iron
potassium
copper
36
lithium & oxygen. (Li) has an oxid. # of +1 and (O) has an oxid. # of -2. Predict Formula.
Li2O
Li2O2
LiO
LiO2
37
A way of organizing the elements based on their chemical properties is the:
isotope
nucleus
energy level
periodic table
38
Which of the following is true for valence electrons?
Valence electrons are found only in radioactive isotopes.
V. E. may be lost or gained by an atom during bonding
Each element has a different number of valence electrons.
V. E. are always located in the innermost energy level.
39
The diagram that best represents the Lewis dot diagram of a chlorine atom is:
5 dots surrounding the Cl symbol
1 dot surrounding the Cl symbol
7 dots surrounding the Cl symbol
4 dots surrounding the Cl symbol
40
Which of the following is TRUE? Covalent bonding occurs:
when electrons are shared between two atoms
when electrons are transferred from one atom to another
only when electrons are shared between two identical atoms
in salts like NaCl
41
Na forms an ionic bond with Cl when sodium ____ an electron and chlorine ____ an electron.
gains, loses
shares, shares
loses, gains
loses, loses
42
Alkali metals, highly reactive with oxygen, are found on the periodic table in group:
17
1
2
18
43
The vertical columns of the periodic table are called:
groups
isotope
periods
halogens
44
The "building blocks" of matter are:
electrons
as of yet undiscovered
atoms & molecules
found only in the plasma state
45
What is the fundamental property of matter that can either be positive or negative?
mass
magnetism
charge
gravity
