Chemistry Fall Semester Review Part 2

Front

What family of elements is represented by the Lewis dot diagram for Noble Gases?

Back

Noble Gases are characterized by having a full valence shell, making them stable and unreactive.

Front

What does the period number on the periodic table indicate?

Back

The period number indicates the number of energy levels (shells) that an atom has.

Front

What is the term for a horizontal row on the periodic table?

Back

A horizontal row on the periodic table is called a period.

Front

What is the shorthand electron configuration for a Sulfur atom?

Back

The shorthand electron configuration for Sulfur is [Ne] 3s² 3p⁴.

Front

Which element has a greater electronegativity: Cl or Al?

Back

Chlorine (Cl) has a greater electronegativity than Aluminum (Al).

Front

Define electronegativity.

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is the significance of the atomic number?

Back

The atomic number represents the number of protons in the nucleus of an atom and determines the element's identity.

Front

What is the difference between groups and periods in the periodic table?

Back

Groups are vertical columns that contain elements with similar properties, while periods are horizontal rows that indicate the number of energy levels.

Front

What is the electron configuration for a Neon atom?

Back

The electron configuration for Neon is 1s² 2s² 2p⁶.