This group of elements is known for its extreme reactivity and tendency to form +1 ions.
The Alkali Metals
This type of reaction involves the combination of two or more substances to form a single product.
A Synthesis Reaction
In this state of matter, particles are tightly packed in a fixed, regular arrangement.
A Solid
This scale measures the concentration of hydrogen ions (H+) in a solution, ranging from 0 to 14.
The pH scale
This type of bond involves the sharing of electrons between atoms.
A covalent bond
Elements in this block are characterized by filling their d orbitals.
The Transition Metals
In this reaction, a single compound breaks down into two or more simpler substances.
A Decomposition Reaction
The process of a substance changing from a liquid to a gas is called this.
Vaporization/Evaporation
According to this theory, an acid is a proton (H+) donor, and a base is a proton acceptor.
The Brønsted-Lowry theory
This type of bond results from the electrostatic attraction between oppositely charged ions.
An ionic bond
This element, atomic number 6, is essential for life and forms the basis of many organic compounds.
Carbon
This reaction involves the transfer of electrons between reactants, resulting in a change in oxidation states.
A Redox Reaction
This state of matter has a definite volume but takes the shape of its container.
A Liquid
A substance that neutralizes both acids and bases is called this.
An amphoteric substance / A buffer
A bond formed by the attraction between a metal cation and the delocalized electrons surrounding it is called this.
A metallic bond
These elements, found in Group 18, are exceptionally unreactive due to their full valence electron shells.
The Noble Gases
A reaction that produces heat is called this.
An Exothermic Reaction
This theory explains the behavior of gases in terms of the motion of their particles.
The Kinetic Molecular Theory
This strong acid is found in stomach acid.
Hydrochloric acid
This term describes a covalent bond where the electrons are not shared equally between atoms.
A polar covalent bond
The modern periodic table is arranged primarily by this property of elements.
Atomic Number
This type of reaction involves the exchange of ions between two compounds in aqueous solution.
A Double Displacement Reaction / Metathesis Reaction
The transition from solid directly to gas, without passing through the liquid phase, is known as this.
Sublimation
A solution with a pH greater than 7 is considered this.
Basic/Alkaline
This theory explains the shapes of molecules based on the repulsion of electron pairs.
The Valence Shell Electron Pair Repulsion