What is the atomic mass unit (amu) based on?

A. Hydrogen
B. Carbon-12
C. Oxygen
D. Uranium

Answer: Carbon-12

Additional Information: The atomic mass unit (amu) is defined as one twelfth the mass of a carbon-12 atom.

Related MCQs

What is the principal quantum number for the outermost electrons in sodium (atomic number 11)?
What type of reaction occurs when two elements combine to form a compound?
What type of energy is stored in the bonds of molecules?
What is the term for the region in an atom where there is a high probability of finding an electron?
What is the process by which RNA is converted into proteins called?
What is the shape of the s orbital?
What is the energy level closest to the nucleus called?
What is the name of the model that describes the atom as having a dense nucleus surrounded by electrons?
What does the term ‘valence shell’ refer to?
What happens to the electronegativity of elements as you move down a group?
What is the principal quantum number (n) for the outermost electrons in sodium (Na)?
Which subatomic particle has no electric charge?
What is the electron configuration of magnesium (atomic number 12)?
What is the unit of measurement for pressure?
What is the main reason for the stability of noble gases?

Search for: