ask a scientist?
1. Most natural materials are mixtures of pure substances 2. Pure substances are either elements or combinations of elements called compounds. 3. A given compound always contains the same proportions by mass of the elements.
an oxygen and a hydrogen atom do not weight the same
Atomic number of a atom is same as the number of protons of the same atom
not all substances contract in the same
Because a mixture means that it contains a mix of substances. And you can choose to mix different amounts (solutions), instead of where in order to create that compound, a specific ratio of elements are required. If the ratio is incorrect, the result will not equal the same compound.
The elements of a compound are the chemical bonds that are present in a specific ratio in a compound. Elements are pure chemical substances that are made of the same atom.
*isomorphic have different chemical and physical properties and poly morphous have same chemical and physical properties
protons and electrons are identical in number in an atom
Element are the pure substances that contain atom of same kind. Atoms are fundamental particles of matter.
Yes, they have the same "halite" crystal structre
The elements of a compound are the simplest components that it can be broken down into by chemical means. The atoms of an element have the same number of protons and electrons and have the same behaviors.
The stoichiometry is governed by the laws of definite proportions and multiple proportions.
compound
compound
Such common compound is Glucose C6H12O6 but most of the mono saccharides have same ratio.
An element is a substance that cannot be broken down into simpler substances. An atom is a single piece of an element. If you break an atom apart, you no longer have that substance.
Atom is the simplest part of the matter in a chemical sense; by physical methods we can break an atom.