4.1 Chemical Patterns and Atoms

Flashcards based on key concepts from the lecture notes on chemical patterns and atomic structure.

Mercury

A metal that is liquid at room temperature due to its low melting temperature.

Atoms

The basic building blocks of chemical elements, compounds, and mixtures.

Physical state

The form in which matter exists; commonly solid, liquid, or gas.

Reactivity of metals

The tendency of metals to undergo chemical reactions, influenced by their atomic structure.

Sub-atomic particles

Particles that make up an atom, including protons, neutrons, and electrons.

Dmitri Mendeleev

A chemist who created the periodic table and predicted the existence of undiscovered elements.

Metalloids

Elements that have properties intermediate between metals and non-metals.

Lord Ernest Rutherford

A scientist known for discovering that most of the atom is empty space.

Niels Bohr

A physicist who contributed to understanding atomic structure and quantum theory.

Chemical patterns

Regular and predictable arrangements and behaviors of elements and compounds in reactions.