Electronic Configuration Details

The distribution of electrons follows specific patterns across different subshells. Each subshell has a maximum electron capacity:

Definition:

• s subshell: maximum 2 electrons
• p subshell: maximum 6 electrons
• d subshell: maximum 10 electrons
• f subshell: maximum 14 electrons

Example: Cu konfiguracja elektronowa demonstrates how electrons are arranged in various subshells, following the aufbau principle.

Highlight: The Klatkowa konfiguracja elektronowa (box configuration) provides a visual representation of electron distribution.

Valence Electrons and Shell Structure

Valence electrons play a crucial role in chemical bonding and reactions. They are the outermost electrons that can participate in chemical bonds.

Definition: Elektrony walencyjne are the electrons available for bonding or sharing during chemical reactions.

Highlight: The atomic core consists of the nucleus plus non-valence electrons.

Example: For elements in:

• Groups 1-2: Number of valence electrons equals group number
• Groups 13-18: Number of valence electrons equals group number minus 10

Vocabulary:

• Duplet Rule: Atoms tend to achieve 2 electrons in their valence shell
• Octet Rule: Atoms tend to achieve 8 electrons in their valence shell

Atomic Structure Fundamentals

The atom's structure is explained through its basic components and numerical identifiers. The nucleus contains positively charged protons and electrically neutral neutrons, comprising 99% of the atom's mass.

Definition: Liczba atomowa (atomic number) equals the number of protons and electrons in a neutral atom.

Vocabulary:

• Proton (P): Positive charge $+1$
• Neutron $n$: Neutral charge (0)
• Electron $e-$: Negative charge $-1$

Example: Pełną konfiguracja elektronowa shows how electrons are distributed across shells, with each shell numbered according to its energy level.

Highlight: Konfiguracja elektronowa atomów can be represented in four different ways: shell configuration, subshell configuration, abbreviated configuration, and box configuration.