Multiple Choice Practice Flashcards
What makes up an ionic compound?
a) one anion and one cation
b) huge numbers of anions and cations
c) molecules
d) uncharged atoms
b) huge numbers of anions and cations
What is the ability of an atom, when bonded, to attract electrons to itself?
a) bond character
b) ionization energy
c) electron affinity
d) electronegativity
d) electronegativity
Which of the following is an important physical property of water?
a) low melting point
b) high boiling point
c) low surface tension
d) low density compared to its solid form
b) high boiling point
true or false:
Mendeleev arranged his periodic table according to increasing atomic number.
false
true or false:
Ionization energy is the amount of energy needed
to remove a valence electron from an atom in the
gaseous state.
true
true or false
Solid ionic compounds conduct an electric current.
false
true or false
A molecular element is made of at least two different kinds of elements.
false
Which scientist discovered that an atom contains
a dense core, which became known as a nucleus?
(a) Bohr
(b) Chadwick
(c) Rutherford
(d) Thomson
c) rutherford
true or false
Atomic radius is a measurement of the size of an
atom.
true
true or false
Ionic compounds form from the attraction between anions and cations.
true
true or false
Polar molecules have a negatively charged end and a positively charged end.
true
true or false
A neutralization reaction results in a solution that
has a higher pH than the pH of the reactant solutions.
false
true or false
A precipitation reaction always has an acid and a base as reactants.
false
neutralization reaction has those reactants
true or false
In a double displacement reaction, a highly soluble
product forms a precipitate.
false
slightly soluble product forms a precipitate
