The average atomic mass of chlorine atom, based on the given isotopic ratio and masses, is ___.
35.5 u
Natural chlorine consists mainly of two isotopes, 35Cl (mass 35 u) and 37Cl (mass 37 u), in the abundance ratio 3 : 1.
Average atomic mass = (3 × 35 + 1 × 37) / 4 = (105 + 37) / 4 = 142 / 4 = 35.5 u.
Hence, the answer is 35.5 u.
Similar Questions
According to Bohr’s model, electrons revolve around the nucleus in:
Two isotopes of chlorine are present in nature: chlorine-35 and chlorine-37. Which statement best explains their chemical behavior?
In Rutherford’s α-particle scattering experiment, the conclusion that most of the atom is empty space was drawn because:
Which statement about mass number is correct?
Which of the following best represents the characteristic properties of isotopes?
Which of the following correctly describes a proton?
Which of the following correctly defines the mass number of an atom?
Imagine a scientist is analyzing an unknown atom and finds it has a mass number of 24 and an atomic number of 12. If the atom gains two neutrons due to a nuclear reaction, what will be its new mass number?
Which of the following statements is/are CORRECT?
Statement I: The maximum number of electrons in any shell is given by 2n2.
Statement II: The third shell (n=3) can hold up to 12 electrons.
Which of the following statements about neutrons is correct?
Important Questions from Structure of Atom
- According to Bohr's model, electromagnetic radiations possess dual character properties behaving like:
- Which of the following is NOT an isotope of hydrogen atom?
- The atomic number of an element is equal to which of the following?
- Which of the following factors primarily determines the size of an atom?
- The atomic radius of hydrogen atom is
