* Atoms are never destroyed or vaporized: This is due to the law of conservation of mass, which states that matter cannot be created or destroyed in ordinary chemical reactions. Atoms simply change their arrangement and bonding to form new molecules.
* Atoms can be ionized: Ionization involves the gain or loss of electrons by an atom, creating a charged species called an ion. Many chemical reactions involve the formation of ions, especially in solutions.
* Atoms can be rearranged: This is the core of chemical reactions. Atoms are bonded together in different ways to form new molecules with different properties. This rearrangement can involve breaking existing bonds and forming new ones.
Examples:
* Combustion: In the burning of wood, the carbon atoms in wood combine with oxygen atoms from the air to form carbon dioxide. The atoms themselves are not destroyed, but they are rearranged to form a new molecule.
* Electrolysis of water: Passing electricity through water causes the water molecules to break down into hydrogen and oxygen gas. Here, the hydrogen and oxygen atoms are not destroyed but rearranged and ionized.
Key Point: While atoms are never destroyed or vaporized in chemical reactions, they can be ionized and their arrangement within molecules can be drastically altered.
