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Johannah Wu
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Is that because of some historical reasons or E=mc2(i mean something about binding energy)?
Hydrogen is not used to compare the relative atomic mass because it has a unique atomic structure compared to other elements. Its atomic mass is not representative of the majority of elements and can vary depending on the isotope. Therefore, using hydrogen as a reference point could lead to inaccurate measurements of the relative atomic mass of other elements.
No, there is no specific element that is universally used to compare the relative atomic mass. However, the most commonly used element for this purpose is carbon-12, which has a defined atomic mass of 12 atomic mass units (amu). This allows for more accurate and consistent comparisons between elements.
While it is not commonly used, there are instances where hydrogen can be used to compare the relative atomic mass. This is typically only done when comparing elements that are similar in atomic structure, such as hydrogen and helium. In these cases, the relative atomic mass of hydrogen is used as a reference point since it is the lightest element.
Using a reference element, such as carbon-12, allows for a standardized and consistent method of measuring the relative atomic mass of elements. This is important in scientific research and calculations, as it ensures accuracy and allows for easier comparisons between different elements.
The relative atomic mass of an element is determined by comparing it to the atomic mass of the reference element, usually carbon-12. This is done using mass spectrometry, which measures the mass-to-charge ratio of atoms. The relative atomic mass of an element is then calculated by multiplying its mass-to-charge ratio by the atomic mass of the reference element.