#1
Which type of bond is formed by the transfer of electrons from one atom to another?
Ionic bond
ExplanationElectrons are transferred from one atom to another, resulting in the formation of an ionic bond.
#2
In an ionic bond, what happens to the electron(s)?
They are transferred from a metal to a nonmetal
ExplanationElectrons move from a metal to a nonmetal during the formation of an ionic bond.
#3
What is the charge of the ion typically formed by oxygen?
2-
ExplanationOxygen typically forms ions with a 2- charge when it gains electrons.
#4
Which of the following elements is most likely to form an ionic bond with chlorine?
Sodium
ExplanationSodium is likely to form an ionic bond with chlorine by donating an electron.
#5
What is the electron configuration of the ion formed when potassium achieves a noble gas electron configuration?
1s2 2s2 2p6 3s2 3p6
ExplanationThe ion formed by potassium achieving a noble gas electron configuration has the electron configuration 1s2 2s2 2p6 3s2 3p6.
#6
How many electrons does aluminum need to lose to achieve a stable electron configuration?
3
ExplanationAluminum needs to lose 3 electrons to achieve a stable electron configuration.
#7
What is the principle behind the formation of ionic bonds according to the octet rule?
Atoms lose or gain electrons to have eight electrons in their outer shell
ExplanationIonic bonds form as atoms gain or lose electrons to achieve a stable outer shell with eight electrons.
#8
Which of the following compounds is NOT likely to form an ionic bond?
H2O
ExplanationH2O (water) is not likely to form an ionic bond; it is a covalent compound.
#9
What is the formula unit of magnesium chloride?
MgCl2
ExplanationThe formula unit for magnesium chloride is MgCl2, representing the ratio of magnesium ions to chloride ions.
#10
The lattice energy of an ionic compound is a measure of
the energy released when the ionic compound is formed from its ions
ExplanationLattice energy is the energy released when ions come together to form an ionic compound.
#11
Which property is NOT a characteristic of ionic compounds?
Formation from two nonmetals
ExplanationIonic compounds are typically formed between metals and nonmetals, not between two nonmetals.
#12
The ionic bond between which of the following pairs of elements will have the highest lattice energy?
LiF
ExplanationLithium fluoride (LiF) will have the highest lattice energy among the given pairs.
#13
Which of the following is a correct representation of the ionic formula for calcium phosphate?
Ca3(PO4)2
ExplanationThe correct ionic formula for calcium phosphate is Ca3(PO4)2.
#14
Which factor does not directly influence the strength of the ionic bond?
Temperature of the environment
ExplanationThe strength of an ionic bond is not directly influenced by the temperature of the environment.
#15
Which statement about ionic compounds is true?
They have high melting points
ExplanationIonic compounds generally exhibit high melting points due to strong electrostatic forces between ions.
#16
In the formation of an ionic compound from magnesium and nitrogen, what is the formula of the compound?
Mg3N2
ExplanationThe formula of the ionic compound formed from magnesium and nitrogen is Mg3N2.