Definition of «chemical elements»

The term chemical element refers to any substance that is made up of atoms with a specific number of protons, neutrons and electrons. These elements are the fundamental building blocks of all matter in the universe and they cannot be broken down into simpler substances through chemical reactions. There are currently 118 known elements, each with its own unique atomic number, atomic mass, and physical properties.

Usage examples

  1. Hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon are some of the chemical elements found in the periodic table.
  2. The chemical elements can be categorized into metals, non-metals, and metalloids based on their properties.
  3. Chemical reactions involve the combination, separation, or rearrangement of chemical elements to form new compounds.
  4. The concept of chemical bonding explains how chemical elements interact and share electrons to form molecules.
  5. The study of atomic structure helps in understanding the behavior and properties of different chemical elements.
  6. Periodic trends in the chemical elements, such as atomic radius and electronegativity, provide valuable insights into their reactivity and behavior.
  7. Many chemical elements are essential for biological processes, including carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.
  8. The periodic table lists chemical elements in order of increasing atomic number, allowing scientists to study patterns and relationships between them.
  9. The discovery and synthesis of new chemical elements expand our knowledge of the universe and contribute to advancements in various fields such as physics, chemistry, and materials science.

Sentences with «chemical elements»

  • By looking at how concentrations of chemical elements in the sediment change with depth, the researchers can develop a continuous record of how much surface runoff poured into the lake. (sciencedaily.com)
  • First, the origin of many heavy chemical elements in the universe, including gold and platinum, has long been a puzzle. (sciencedaily.com)
  • These observations may help solve another long - standing question in astronomy: the origin of heavy chemical elements, like gold and platinum [5]. (sciencedaily.com)
  • (see all sentences)
a b c d e f g h i j k l m n o p q r s t u v w x y z