Basic substances that cannot be broken down into simpler substances are called:

Basic substances that cannot be broken down into simpler substances are called:

• A. Solids
• B. Elements
• C. Molecules
• D. Compounds

Answer: (B)

Elements are the simplest substances that cannot be broken down into even simpler substances by chemical means. Each element is defined by the number of protons in its nucleus, which gives it its unique identity. Examples like hydrogen, carbon, and oxygen show what elements are in their pure form. Elements can combine to form compounds, and when two or more atoms of the same element bond, you get molecules of that element (such as O2). A molecule can be either an element or a compound, but a compound is specifically made from two or more different elements in a fixed ratio. Solids describe a state of matter, not a basic substance, and a molecule is a group of atoms bonded together, which can be either an element or a compound.

Elements are the simplest substances that cannot be broken down into even simpler substances by chemical means. Each element is defined by the number of protons in its nucleus, which gives it its unique identity. Examples like hydrogen, carbon, and oxygen show what elements are in their pure form. Elements can combine to form compounds, and when two or more atoms of the same element bond, you get molecules of that element (such as O2). A molecule can be either an element or a compound, but a compound is specifically made from two or more different elements in a fixed ratio. Solids describe a state of matter, not a basic substance, and a molecule is a group of atoms bonded together, which can be either an element or a compound.