Multiple Choice Practice

What makes up an ionic compound? a) one anion and one cation b) huge numbers of anions and cations c) molecules d) uncharged atoms

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

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

true or false: Mendeleev arranged his periodic table according to increasing atomic number.

true or false: Ionization energy is the amount of energy needed to remove a valence electron from an atom in the gaseous state.

true or false Solid ionic compounds conduct an electric current.

true or false A molecular element is made of at least two different kinds of elements.

Which scientist discovered that an atom contains a dense core, which became known as a nucleus? (a) Bohr (b) Chadwick (c) Rutherford (d) Thomson

true or false Atomic radius is a measurement of the size of an atom.

true or false Ionic compounds form from the attraction between anions and cations.

true or false Polar molecules have a negatively charged end and a positively charged end.

true or false A neutralization reaction results in a solution that has a higher pH than the pH of the reactant solutions.

true or false A precipitation reaction always has an acid and a base as reactants.

true or false In a double displacement reaction, a highly soluble product forms a precipitate.