WorksheetsChapter 3 Atoms & Bonding
Total questions: 23
Worksheet time: 12mins
What type of charge does a proton have?
Positive
Negative
No charge
Even Charge
What type of charge does a electron have?
Positive
Negative
No Charge
Equal Charge
What type of charge does a neutron have?
Positive
Negative
No Charge
Equal Charge
Which is a property shared by most molecular compounds?
High Boiling Point
High Melting Point
Low Melting Point
Nonpolar Bonds
When an atom loses an electron, it becomes a
Positive ion
Negative ion
Neutral ion
Neutral atom
Magnesium bromide is an ionic compound with the chemical formula MgBr2. What does the “2” tell you?
Bromide has a 2- charge
There are two magnesium ions to every bromide ion
There are two bromide ions for every magnesium ion
Bromide has a 2+ charge
In the chemical formula for an ionic compound, which item is written first?
the name of the positive ion
the name of the negative ion
the subscripts
the charges
The chemical name for the compound with the formula Na2S is
sodium fluoride
magnesium sulfide
lithium oxide
sodium sulfide
What is a double bond?
a bond between two atoms
one pair of electrons shared between two atoms
two pairs of electrons shared between two atoms
two pairs of electrons shared between four atoms
Electrons involved in bonding between atoms are
valence electrons
inside the nucleus
closest to the nucleus
positively charged
A mixture made of two or more elements, at least one of which is a metal is called a(n)
superconductor.
metallic bond
complex metal.
alloy
Which of the following terms means that metals can be rolled into thin sheets, as in aluminum foil, or beaten into complex shapes?
polar
alloy
ductile
malleable
Which of the following groups contains the most reactive elements?
the alkali metals
the alkaline earth metals
the carbon family
the noble gases
Ionic compounds that dissolve in water conduct electricity because they break into ____________________ that move freely.
Polar
Electricity
Valence Electrons
Ions
Solid metals are good conductors of heat and ____________________.
Ions
Polar
Electricity
Charged Particles
Molecular compounds that dissolve in water do not conduct electricity because no _________________________ are present.
Charged Particles
Valence Electrons
Electricty
Ions
Because the electrons in a molecule of hydrogen fluoride (HF) are more strongly pulled toward the fluorine atom, the molecule is ____________________.
Valence Electrons
Charged Particles
Electricity
Polar
A metal crystal consists of positively charged metal ions embedded in a “sea” of freely moving _________________________.
Polar
Charged Particles
Valence Elctrons
Ions
The properties of solid metals can be explained by the structure of and the bonding among the metal atoms.
True
False
Orderly crystal shapes, high melting points, and electrical conductivity when dissolved in water are properties of ionic compounds
True
False
When electrons are transferred between two atoms, a covalent bond is formed.
True
False
A low melting point is one property of molecular compounds.
True
False
A nonpolar bond is formed when two atoms share electrons unequally
True
False
