Chemistry Quiz: Metallic Bonding & Atoms

A type of chemical bond found in metals, where electrons are delocalized and flow freely between positively charged metal ions, creating a strong attraction.

Metals are arranged in a regular, repeating pattern of positive ions held together by a 'sea' of freely moving electrons.

The ability of a substance to conduct heat. In metals, heat is transferred through the movement of free electrons and the vibration of ions.

The ability of a substance to conduct electricity. Metals are good conductors because their free-moving electrons can carry an electric current.

Atoms with the same number of protons but different numbers of neutrons. They have the same chemical properties but different atomic masses.

The total number of protons and neutrons in an atom's nucleus.

The state of matter where particles are tightly packed and vibrate in fixed positions. Solids have a definite shape and volume.

The state of matter where particles are close together but can slide past each other. Liquids have a definite volume but take the shape of their container.

Elements with a full outer electron shell, making them unreactive. Examples: Helium, Neon, Argon.

Involves a metal losing electrons to become a positive ion (cation) and a non-metal gaining electrons to become a negative ion (anion). These oppositely charged ions form a strong bond.

Atoms share electrons to achieve a full outer shell, creating a stable bond between non-metal atoms.

A process where substances change into new substances. Signs include color change, temperature change, gas formation, or precipitate formation.

The total mass of reactants in a chemical reaction equals the total mass of products. No mass is lost or gained.

A pure substance made of only one type of atom. Examples: Oxygen (O₂), Gold (Au).

Two or more elements chemically combined in fixed proportions. Examples: Carbon dioxide (CO₂).

A combination of two or more substances that are not chemically bonded and can be separated by physical means. Examples: Air (a mixture of gases).

A scale that measures the acidity or alkalinity of a solution. It ranges from 0 to 14. Values below 7 are acidic, above 7 are alkaline, and 7 itself is neutral.

Substances that release hydrogen ions (H+) in water. They have a pH value below 7.

Substances that release hydroxide ions (OH-) in water. They have a pH value above 7.

A representation of a chemical reaction using symbols and formulas. It shows the reactants and the products.

Ensuring that the same number of atoms of each element is present on both sides of a chemical equation. This follows the Law of Conservation of Mass.

They are formed by the transfer of electrons between metals and non-metals. Metals become positively charged ions (cations) by losing electrons, while non-metals gain electrons to become negatively charged ions (anions).

They are formed by the sharing of electrons between non-metals. Sharing of electrons leads to the formation of covalent bonds between atoms.

They have high melting and boiling points due to strong ionic forces holding the ions together. They conduct electricity when molten or dissolved as ions can move freely. Most of them are soluble in water.