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What is a molecule simple definition for kids?
A molecule is two or more atoms joined (or “bonded”) tightly together. For example, a molecule made of two oxygen atoms joined to one carbon atom forms carbon dioxide, a colorless gas. But a molecule made of two hydrogen atoms joined to one oxygen atom forms water, a liquid.
What is a molecule short answer?
A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.
What is a molecule and examples?
A molecule may consist of two or more atoms of a single element or atoms of different elements. Here are some examples of molecules: H2O (water) N2 (nitrogen) O3 (ozone)
Can an atom be a molecule?
Elements can be made of one atom, like He, or be elemental molecules, such as hydrogen (H2), oxygen (O2), chlorine (Cl2), ozone (O3), and sulfur (S8). Atoms are not drawn to scale. Some elements are monatomic, meaning they are made of a single (mon-) atom (-atomic) in their molecular form.
What is a real life example of molecule?
Water is an example of a molecule with a polar covalent bond. Because oxygen has a much higher electronegativity (3.5) than hydrogen (2.1), the electrons tend to gravitate toward the oxygen atom.
What are some examples of a molecule?
Molecules of compounds have atoms of two or more different elements. For example, water (H2O) has three atoms, two hydrogen (H) atoms and one oxygen (O) atom. Methane (CH4), a common greenhouse gas, has five atoms, one of carbon (C) and four of hydrogen (H, see Fig. 2.9).
Which is the best definition of a molecule?
Definition of Molecule What is a Molecule? A molecule is a particle made up of two or more atoms that are chemically bonded together; the number of atomic nuclei making up a molecule is a determinate number. For example, HCl(g)is a molecule made of one hydrogen atom bonded to one chlorine atom.
How to use a molecule in a sentence?
mol·e·cule. Use molecule in a sentence. A model of a water molecule. noun. The definition of a molecule is the smallest amount of something, particularly of a chemical substance, that can exist on its own. An example of a molecule are two atoms of hydrogen.
What are molecules held by?
Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms. The atoms of certain elements readily bond with other atoms to form molecules.
How are atoms and molecules the same thing?
A molecule is a group of two or more atoms that bond together. Atoms are the basic building blocks of matter. You might have seen a picture of an atom before. It has a nucleus in the middle and electrons floating around it. A good way to think about atoms and molecules is to think of the letters that make up a word.