FINAL REVIEW

Front

What is the trend in electronegativity in the periodic table?

Back

Electronegativity increases from left to right in a period and decreases from top to bottom in a group.

Front

What is the empirical formula for a compound that is 57.5% Na, 40.00% O, and 2.5% H?

Back

NaOH

Front

What best describes radioactive decay?

Back

An atomic nucleus loses mass as the nucleus releases energy.

Front

What is the accepted IUPAC name for the compound Mg₃P₂?

Back

magnesium phosphide

Front

What is the IUPAC name for the compound HNO₂?

Back

nitrous acid

Front

Define electronegativity.

Back

Electronegativity is the tendency of an atom to attract electrons in a chemical bond.

Front

What is the significance of the empirical formula?

Back

The empirical formula represents the simplest whole-number ratio of atoms in a compound.

Front

Explain the concept of radioactive decay.

Back

Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting radiation.

Front

What is the difference between empirical and molecular formulas?

Back

The empirical formula shows the simplest ratio of elements, while the molecular formula shows the actual number of atoms in a molecule.

Front

What is the role of IUPAC in chemistry?

Back

IUPAC (International Union of Pure and Applied Chemistry) establishes standardized naming conventions for chemical compounds.