Question

*In determining the atomic mass of an element, the relative mass of a carbon atom is considered to be _____.*

1️⃣ 16
2️⃣ 6
3️⃣ 12
4️⃣ 24​

Answer 1

In determining the atomic mass of an element, the relative mass of a carbon atom is considered to be 12.

Answer 2

In determining the atomic mass of an element, the relative mass of a carbon atom is considered to be 12.

• The atomic mass of an element is measured by the unit known as AMU or Atomic Mass Unit.
• Now, AMU or Atomic Mass Unit can be defined as,

1 AMU = 1/12th of mass of an atom of carbon-12 isotope.

• So, it is clear that atomic mass of an element is measured with respect to the mass of an atom of carbon-12 isotope.
• That's why the correct answer will be 12.