An element is a composition of many atoms. Thus you can hold NaCl (salt) in your hand. You can't hold the atoms it makes up.
By number of protons/electrons.
number of protons
Atoms of the same element can differ from one another in their atomic mass, which is determined by the number of neutrons in the nucleus. These variations are called isotopes. Isotopes of the same element have the same number of protons but different numbers of neutrons.
Fusion
Monosaccharides differ from one another in the following ways: The number of carbon atoms they contain. The orientations of their hydroxyl group. The location of their carbonyl group.
Atoms are the smallest unit of matter that retains the properties of an element, composed of protons, neutrons, and electrons. Elements are substances made up of only one type of atom and are organized on the periodic table based on their atomic number and chemical properties. In other words, elements are made up of atoms, which are the building blocks of matter.
The key difference that causes atoms of one element to differ from all other elements is the number of protons in their nucleus. This number, known as the atomic number, determines the element's specific properties.
No, the composition of the same compound does not differ from one location to another. A compound has a fixed chemical formula regardless of where it is found. The arrangement of atoms and elements within the compound remains consistent regardless of its location.
false
Their atomic number differ by 1. It is applicable for elements located next to one another.
The basic building block of all compounds is atoms. Compounds contain atoms of at least two different elements bonded to one another. Thus, atoms of elements are what form compounds.
Elements are just one type of atom. An element is a group of atoms of one type.