WorksheetsBonding
Total questions: 42
Worksheet time: 1hrs 6mins
Why do elements bond?
To be friends
To create a new element
To become stable
To get bigger
What kind of bond forms when atoms transfer electrons?
metallic
molecular
Which of the following describes covalent bonds?
Bonds form because of opposite charges
electrons are shared to fill outer electron shells
Electrons are transferred between atoms
Covalent bonds are magical
The octet rules states that most elements want to have _____ valence electrons.
2
4
6
8
How many valence electrons does Oxygen (O) have?
6
8
15
16
Which two statements are correct about the figure shown?
It is a covalent bond.
Hydrogen atoms loss electrons and Carbon gains the atoms.
It happens on metal and on another non-metal.
The valence electrons are shared by both atoms.
Check all that characterizes an ionic compound.
Hard
non-conductor of heat and electricity
High melting and boiling points
non-soluble in water
Check two general properties of a molecular compound.
Hard
Soft
Low melting point
poor conductor of electricity when in solid state.
Which two are ionic compounds?
NaCl
HCl
CH4
CaO
Which two are molecular compounds?
MgO
Al2O3
CO2
H2O
An atom with a different number of electrons than it should have (more or less) is called an ---
isotope
valence electron
ion
octet
Why do elements bond?
To be friends
To create a new element
To become stable
To get bigger
What kind of bond forms when atoms transfer electrons?
metallic
molecular
Which of the following describes covalent bonds?
Bonds form because of opposite charges
electrons are shared to fill outer electron shells
Electrons are transferred between atoms
Covalent bonds are magical
The octet rules states that most elements want to have _____ valence electrons.
2
4
6
8
How many valence electrons does Oxygen (O) have?
6
8
15
16
Which two statements are correct about the figure shown?
It is a covalent bond.
Hydrogen atoms loss electrons and Carbon gains the atoms.
It happens on metal and on another non-metal.
The valence electrons are shared by both atoms.
Check all that characterizes an ionic compound.
Hard
non-conductor of heat and electricity
High melting and boiling points
non-soluble in water
Check two general properties of a molecular compound.
Hard
Soft
Low melting point
poor conductor of electricity when in solid state.
Which two are ionic compounds?
NaCl
HCl
CH4
CaO
Which two are molecular compounds?
MgO
Al2O3
CO2
H2O
An atom with a different number of electrons than it should have (more or less) is called an ---
isotope
valence electron
ion
octet
