Final Exam Review 2024

Front

Elements d-block elements can have more than one possible oxidation number.

Back

True

Front

In a crystal lattice, how are the ions arranged?

Back

Positive ions are surrounded by negative ions and negative ions are surrounded by positive ions.

Front

A single unit of a covalent compound is called a(n)

Back

molecule

Front

A single unit of an element is called a (n).

Back

atom

Front

A single unit of an ionic compound is referred to as a(n) .

Back

formula unit

Front

In lab, never dip a stirring rod into a stock reagent bottle because __.

Back

the contents of the reactant bottle may become contaminated

Front

Elements in the same column of the periodic table share the same number of __.

Back

valence electrons

Front

What is the composition of one Calcium atom?

Back

20 protons, 20 electrons

Front

The half-life of a radioactive isotope is 60 seconds. How long does it take for a 8.0 gram sample to decay to 0.5 grams?

Back

300 seconds

Front

Which element is known for its ability to conduct electricity and is often used in electrical wiring?

Back

copper