What is a molecule?

Answer 1

The smallest particle of a compound that has all the chemical properties of that compound. Molecules are made up of two or more atoms, either of the same element or of two or more different elements. Ionic compounds, such as common salt, are made up not of molecules, but of ions arranged in a crystalline structure. Unlike ions, molecules carry no electrical charge. Molecules differ in size and molecular weight as well as in structure.

Compounds are comprised of species whose electronegativities differ by 3.5 or more. The individual components when dissociated are called ions. Molecules are comprised of species whose electronegativities are within the 3.5 range. They more or less share the electrons between them and contain covalent bonds. A molecule is a combination of 2 or more atoms linked with chemical bond and is neutral, however molecule can also represent polyatomic ions

Answer 2

1. The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms; a group of like or different atoms held together by chemical forces.

2. A small particle; a tiny bit

Answer 3

A suggestion: heat a mixture ot iron fine powder with sulfur. Explain that Fe and S are elements and the obtained iron sulfide is a compound having molecules (an association of two elements, Fe and S).

Answer 4

A suggestion: heat a mixture of iron fine powder with sulfur. Explain that Fe and S are elements and the obtained iron sulfide is a compound having molecules (an association of two elements, Fe and S).

Answer 5

In simple terms, a molecule is the smallest unit of something that can still be called that thing. Such as the smallest bit of water that can still be called water is a molecule of 2 hydrogens and 1 oxygen, or H20

Answer 6

An molecule are particles made up of two or more bonded atoms.

Answer 7

an element

a compound

an ion

two or more atoms bonded together