Chlorine occurs naturally as a mixture of two main isotopes: chlorine-35 (³⁵Cl) and chlorine-37 (³⁷Cl). Their approximate natural abundances are about 75% for ³⁵Cl (mass ≈ 34.97 u) and 25% for ³⁷Cl (mass ≈ 36.97 u). The average atomic mass is a weighted average of the masses of its isotopes based on their natural abundance.
Which one of the following is the average atomic mass of chlorine atom ?
Asked in UPSC CAPF 2020 · Topic: Atomic Structure (Isotopes, Isobars, and Isotones)
More Chemistry questions
- Which one of the following properties decreases across the periodic table from left to right and increases from top to bottom?
- The atomic radius of hydrogen atom is
- Which one among the following statements with respect to the atomic number of an atom is correct ?
- Two isotopes have same
- Which radioactive metal is responsible for Chernobyl accident?
- An atom consists of 17 protons and 18 neutrons. What is the correct symbol for this element? (1) $ \frac{35}{17} \text{Cl} $ (2) $ \frac{40}{18} \text{Ar} $ (3) $ \frac{80}{35} \text{Br} $ (4) None of the above (5) Question not attempted
- The number of electrons, protons and neutrons in a species are equal to 23, 26 and 26 respectively. The proper symbol of the species is - (1) Fe3+ (2) Fe2+ (3) Fe3+ (4) Fe2+ (5) Question not attempted
- Which one of the following elements has atomicity equal to one? - Sulphur - Argon - Chlorine - Oxygen
