WorksheetsIon formation and ionic bonds
Total questions: 20
Worksheet time: 10mins
Which of these is the electron configuration of an atom most likely to lose and electron?
1s2 2s2 2p6
[He]2s2 2p5
1s2 2s2 2p6 3s2 3p5
1s2 2s2 2p6 3s2 3p6 4s1
A positive ion forms when ________.
an atom loses one or more valence electrons
an atom gains one or more valence electrons
electrons are pulled into the nucleus
electrons are pushed out of the nucleus
Why is the calcium ion (Ca2+) more stable than the calcium atom (Ca)?
Twenty electrons are more stable than eighteen electrons.
Eighteen electrons are less stable than twenty electrons.
The two electrons more than the noble gas configuration is more stable.
The noble gas configuration is more stable.
What is the electron configuration of the sodium atom after it loses an electron?
1s2 2s2 2p6
[He]2s2 2p5
1s2 2s2 2p6 3s1
1s2 2s2 2p6 3s2
Explain why the zinc 2+ ion has some stability.
The zinc ion has achieved a noble gas configuration.
The zinc ion has full s, p, and d sublevels to form a pseudo-noble gas configuration.
The zinc ion is a transition metal.
The zinc ion has bonded with two free electrons.
Which of the following lattice energies represents the strongest force of attraction holding the ions in place?
632 kJ/mol
769 kJ/mol
910 kJ/mol
2142 kJ/mol
An ionic compound that will conduct an electric current when it forms an aqueous solution is a(n) _______.
electrolyte
nonelectrolyte
molecular compound
crystal lattice
Ionic crystals have high melting points and high boiling points because _______.
ionic bonds are relatively weak
ionic solids are excellent conductors of electricity
ionic bonds are relatively strong
ionic liquids do not conduct electricity
In the ionic solid sodium chloride (NaCl), there is a ________ ratio of sodium ions to chlorine ions.
one to two
two to one
one to one
one and a half to one
What is the ionic ratio of aluminum to oxygen in the ionic compound aluminum oxide?
one to three
one to two
two to three
one to three
A positively charged atom is called a(n) ________.
cation
anion
A negatively charged atom is called a(n) ________.
cation
anion
Binary ionic compounds always consist of _______ .
a cation and an anion
two cations
two anions
Ionic bonds form due to _______.
attraction between opposite charges
attraction between two nuclei
attraction between a nucleus and another atom's electrons, as well as the overall opposite charges of two ions
attraction between electrons and a cation
What charge will a beryllium (Be) ion have?
1+
2+
1-
2-
What charge will a sulfide (S) ion have?
2+
3+
2-
3-
Metals ______ electrons when they become ions.
lose
gain
neither
Non-metals ______ electrons when they become ions.
lose
gain
neither
How many electrons are in a Li+ ion?
1
2
3
4
What is an ion?
A small atom
A charged atom
A large atom
A cute atom
