do elements have a variable composition - Axtarish в Google
21 мар. 2018 г. · No. Explanation: Elements are pure substances BUT they can exist as isotopes which are different forms of the same atom.
Composition of Elements: The compound that is represented by different ratios of the elements, then the compound is known as having variable composition.
In Mixtures and Pure Substances. A mixture is a substance with a variable composition, meaning that it is composed of molecules or atoms of differing types.
A mixture can have variable composition, depending on the proportions of the mixed substances. A pure substance is a form of matter with a uniform composition ...
6 нояб. 2023 г. · Multiple choice question. A compound is a substance in which the atoms of two or more elements are physically combined in variable proportions.
15 февр. 2023 г. · Elements have a number of properties that are unique ... can have variable composition, meaning the proportion of the components can vary.
(i)Can have variable composition of constituent elements(A)Compound(ii) – – – is new substance formed due to reaction of two constituent elements(B)Mixture(iii ...
Variable composition is one indication of a mixture. In a mixture of magnesium and selenium, the two elements maintain their individual properties.
A chemical element is a chemical substance whose atoms all have the same number of protons. The number of protons is called the atomic number of that element. List · Discovery of chemical... · Naming · Abundance of the chemical...
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