An element is a substance composed of atoms with the same atomic number.
What are the three states of matter?
The three states of matter are solid, liquid, and gas.
What is a compound?
A compound is a substance composed of two or more different elements chemically bonded together.
What is the atomic number of an element?
The atomic number of an element is the number of protons in the nucleus of its atom.
What is a chemical reaction?
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
Define a molecule.
A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
What is an ion?
An ion is an atom or molecule that has gained or lost one or more electrons, thus acquiring an electrical charge.
What is the periodic table?
The periodic table is a tabular arrangement of chemical elements, organized based on their atomic number, electron configuration, and recurring chemical properties.
What is a physical change?
A physical change is a change in which no new substance is formed, but the matter undergoes a change in its physical state.
What is a chemical formula?
A chemical formula is a notation used to express the composition of a compound using chemical symbols and numerical subscripts.
What is an isotope?
An isotope is a variant form of a chemical element that has the same number of protons but a different number of neutrons.
Define acidity.
Acidity is a measure of the concentration of hydrogen ions in a solution.
What is a chemical bond?
A chemical bond is a lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds.
What is the difference between an element and a compound?
An element is a substance made of only one type of atom, while a compound is made of two or more different types of atoms bonded together.
Define a solution.
A solution is a homogeneous mixture composed of two or more substances.
What is an atom?
An atom is the basic unit of matter.
Define an element.
An element is a substance composed of atoms with the same atomic number.
What are the three states of matter?
The three states of matter are solid, liquid, and gas.
What is a compound?
A compound is a substance composed of two or more different elements chemically bonded together.
What is the atomic number of an element?
The atomic number of an element is the number of protons in the nucleus of its atom.
What is a chemical reaction?
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
Define a molecule.
A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
What is an ion?
An ion is an atom or molecule that has gained or lost one or more electrons, thus acquiring an electrical charge.
What is the periodic table?
The periodic table is a tabular arrangement of chemical elements, organized based on their atomic number, electron configuration, and recurring chemical properties.
What is a physical change?
A physical change is a change in which no new substance is formed, but the matter undergoes a change in its physical state.
What is a chemical formula?
A chemical formula is a notation used to express the composition of a compound using chemical symbols and numerical subscripts.
What is an isotope?
An isotope is a variant form of a chemical element that has the same number of protons but a different number of neutrons.
Define acidity.
Acidity is a measure of the concentration of hydrogen ions in a solution.
What is a chemical bond?
A chemical bond is a lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds.
What is the difference between an element and a compound?
An element is a substance made of only one type of atom, while a compound is made of two or more different types of atoms bonded together.
Define a solution.
A solution is a homogeneous mixture composed of two or more substances.