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Ch. 5 Atoms, Bonding, and The Periodic Table Flashcards | StudBud
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Ch. 5 Atoms, Bonding, and The Periodic Table
Ch. 5 Atoms, Bonding, and The Periodic Table
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Review for a chapter test on atoms, bonding and the periodic table.
Flashcards
25 cards
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Questions
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Answers
1
What is steel an alloy of?
gold
silver
iron
lead
2
Ionic compounds are electrically...
negative
positive
charged
neutral
3
Chemical bonds are formed when valence electrons are ____________ between atoms.
stolen
what?
shared
bonded
4
How are atoms arranged on the periodic table?
by the atomic number, which increases from left to right
by the chemical symbol
by the atomic number which decreases from left to right
with atomic mass increasing
5
Ions that are made of more than one atom are called what?
polyatomic ions
diatomic molecules
isotopes
ion group
6
A mixture that acts like a metal and is made of two or more elements, where one is a metal...
an element
an ion
a molecule
an alloy
7
What is a property shared by most molecular compounds?
isotopes
low melting points
nonpolar bonds
high melting points
8
Molecular compounds do not conduct electricity because they...
do not dissolve in water
are flammable
do not break up into ions
break up into ions
9
Elements in group 1 lose an electron to from an ion with a ________ charge.
neutral
positive
polyatomic
negative
10
True or False: Ionic compounds form hard, brittle crystals with characteristic shapes.
false
true
11
What is a double bond?
two pairs of shared electrons between to atoms
two molecules
crystal bond
a bond between two atoms
12
When an atom loses an electron it becomes what?
an ion
a positively charged ion
an isotope
a negatively charged ion
13
A chemical bond formed when at least two atoms share electrons is called what?
a molecule
an isotope
a covalent bond
an ionic bond
14
What are some properties of metal?
it is flammable
it is malleable, ductile, and a good conductor.
it is soft
it is strong
15
The groups on the periodic table have similar properties because of what?
similar stucture
the number of nuetrons
protons
valence electrons
16
What is greatest number of valence electrons an atom can have?
2
there is no limit.
8
18
17
Electrons that are involved in the bonding of atoms are called?
Outer Electrons
Ions
Isotopes
Valence Electrons
18
A covalent bond where electrons are shared unequally is called...
a polar bond
a double bond
a nonpolar bond
a polyatomic bond
19
Am I going to do well on this test?
YES!
I think so...
maybe...
no :|
20
Covalent bonds share electrons and form what?
alloys
polyatomic mixtures
ions
molecules
21
True or False: Valence electrons are tightly held by atoms?
True
False
22
When can an ionic compound conduct electricity?
as a crystal
when heated up
never
when dissolved in water
23
An ionic bond is based on the attraction between what?
oppositely charged ions
neutral ions
positive ions
similarly charged atoms
24
True or False: The total charge of an ion is negative.
False, neutral
True
False, positive
25
Each group has certain characteristics based on the number of what?
protons
neutrons
valence electrons
electrons
