WorksheetsGüçlü Etkileşimler
Total questions: 20
Worksheet time: 10mins
The name of Cu3N2 is;
copper (III) nitride
copper nitride
copper (II) nitride
tricopper dinitride
A chemical bond resulting from electrostatic attraction between positive and negative ions is called a(n)
covalent bond
ionic bond
charged bond
dipole bond
What happens to valence electrons in ionic bonding?
The metal gives valence electrons to the nonmetal.
The nonmetal gives valence electrons to the metal.
The metal and nonmetal share electrons equally.
Both the metal and nonmetal lose electrons.
Which of the the following is wrong about the structure and properties of ionic compounds.
They have high melting and boiling points.
They conduct electricity in solid state.
They have lattice structure.
They can conduct electricity when molten.
The ions are held together by electrostatic attraction.
Which of the following is the correct formula for magnesium hydroxide?
MgOH
Mg(OH)2
MgOH2
MgO
Which of the following is the correct formula for sodium chloride?
SoCl
SdCl
NaCl
NaCl2
What do numerals represent in the name of a transition metal compound?
The mass number
The oxidation number of the nonmetal
The oxidation number of the metal
How many atoms of the metal there are
The name of MgS is;
sulfur magnesium
magnesium sulfur
magnesium sulfate
magnesium sulfide
Which of the following is the Lewis structure of calcium oxide?
A
B
C
D
Typically, when two atoms form a chemical bond, the expected result is that the electrons
will complete a noble gas configuration for both atoms.
will be completely removed from both atoms.
will be in the excited state.
A triple bond involves the sharing of;
3 electrons
6 electrons
9 electrons
The element oxygen has __________ valence electrons and needs to add __________ electrons to complete its octet.
2, 6
6, 2
4, 4
In the nitrogen molecule, N2, how many electrons are shared?
2
4
6
An arsenic atom has __________ valence electrons and a chlorine atom has __________ valence electrons. The most likely compound formed between arsenic and chlorine is __________.
3, 1, AsCl3
5, 7, AsCl
5, 7, AsCl3
Which group of elements has a naturally occurring completed outer shell of electrons?
transition metals
lanthanides
noble gases
In chemical compounds, covalent bonds form when;
two nonmetal atoms are attracted to each other by opposite charges.
pairs of electrons are shared between two nonmetal atoms.
electrons are completely transferred between two metals.
the electronegativity difference between two atoms is very large.
Which of the following is the correct Lewis structure for NI3?
A
B
C
D
Why do metals conduct electricity?
They are shiny
The electrons are held tightly within the lattice
The electrons are delocalised and able to move
The electrons are shared between two metal ions
Why do metals have high melting points?
Metallic bonds are strong and metals have a simple structure
Metallic bonds are strong and metals have a lattice structure
Metallic bonds are weak and metals have a simple structure
What is the basis of a metallic bond?
the attraction between positive metal ions and free floating electrons
the attraction between positive metal ions and interlocking electrons.
the attraction between protons and neutrons.
the attraction of neutral metal atoms.
