The periodic table of elements is a fundamental tool in chemistry, displaying all known chemical elements organized by their atomic number, electron configuration, and recurring chemical properties. This table provides essential information for each element, including its symbol, atomic number, and atomic mass.
Key features of the periodic table shown:
- Elements are arranged in order of increasing atomic number
- Includes atomic mass and electronegativity values for elements
- Displays element symbols and full names
- Highlights the wartościowość (valence) of elements
- Shows atomic numbers for quick reference
Highlight: The periodic table is crucial for understanding chemical relationships and predicting element behaviors.
Notable elements visible:
- Hydrogen (H): The lightest element, positioned uniquely in the table
- Lithium (Li): First alkali metal in the periodic table
- Sodium (Na): Common alkali metal with atomic number 11
- Potassium (K): Essential element for biological processes
- Cesium (Cs): Soft alkali metal with a low melting point
- Francium (Fr): Highly radioactive alkali metal
Vocabulary: Masa atomowa (atomic mass) is the average mass of atoms of an element, considering all its naturally occurring isotopes.
Example: The masa atomowa wodoru (atomic mass of hydrogen) is shown as 1.008 on the table.
Definition: Elektroujemność (electronegativity) is a measure of an atom's ability to attract electrons in a chemical bond.
The table also includes lanthanides and actinides, represented by separate rows at the bottom. This compact arrangement allows for a more manageable table size while still including all elements.
Quote: "AN" likely stands for "Atomic Number" in the table, indicating the number of protons in an atom's nucleus.
This periodic table serves as an invaluable resource for students and professionals alike, providing a wealth of information about chemical elements in a single, organized format.
