The Periodic Table
Chemical Reactions
States Of Matter
Acids And Bases
Chemical Bonding
100

This group of elements is known for its extreme reactivity and tendency to form +1 ions.

The Alkali Metals

100

This type of reaction involves the combination of two or more substances to form a single product.

A Synthesis Reaction

100

In this state of matter, particles are tightly packed in a fixed, regular arrangement.

A Solid

100

This scale measures the concentration of hydrogen ions (H+) in a solution, ranging from 0 to 14.

The pH scale

100

This type of bond involves the sharing of electrons between atoms.

A covalent bond

200

Elements in this block are characterized by filling their d orbitals.

The Transition Metals

200

In this reaction, a single compound breaks down into two or more simpler substances.

A Decomposition Reaction

200

The process of a substance changing from a liquid to a gas is called this.

Vaporization/Evaporation

200

According to this theory, an acid is a proton (H+) donor, and a base is a proton acceptor.

The Brønsted-Lowry theory

200

This type of bond results from the electrostatic attraction between oppositely charged ions.

An ionic bond

300

This element, atomic number 6, is essential for life and forms the basis of many organic compounds.

Carbon

300

This reaction involves the transfer of electrons between reactants, resulting in a change in oxidation states.

A Redox Reaction

300

This state of matter has a definite volume but takes the shape of its container.

A Liquid

300

A substance that neutralizes both acids and bases is called this.

An amphoteric substance / A buffer

300

A bond formed by the attraction between a metal cation and the delocalized electrons surrounding it is called this.

A metallic bond

400

These elements, found in Group 18, are exceptionally unreactive due to their full valence electron shells.

The Noble Gases

400

A reaction that produces heat is called this.

An Exothermic Reaction

400

This theory explains the behavior of gases in terms of the motion of their particles.

The Kinetic Molecular Theory

400

This strong acid is found in stomach acid.

Hydrochloric acid

400

This term describes a covalent bond where the electrons are not shared equally between atoms.

A polar covalent bond

500

The modern periodic table is arranged primarily by this property of elements.

Atomic Number

500

This type of reaction involves the exchange of ions between two compounds in aqueous solution.

A Double Displacement Reaction / Metathesis Reaction

500

The transition from solid directly to gas, without passing through the liquid phase, is known as this.

Sublimation

500

A solution with a pH greater than 7 is considered this.

Basic/Alkaline

500

This theory explains the shapes of molecules based on the repulsion of electron pairs.

The Valence Shell Electron Pair Repulsion

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