Why does chlorine have fractional atomic mass number?

It has atomic number 17, chlorine have fractional atomic mass number because it has two isotopes having atomic mass number 35 and 37 in the ratio 3:1. This is because the atomic weight used in the periodic table and calculations is the average mass of its isotopes whose atomic masses are 34 and 35.

Why is the atomic number always in fraction?

The atomic masses of most elements are fractional because they exist as a mixture of isotopes of different masses.

What is the reason behind fractional atomic mass?

Reason for fractional atomic mass: The atomic masses of most elements are fractional because they exist as a mixture of isotopes of different masses. Since the atomic mass of isotopes are different, so average atomic mass is calculated for a single element.

Does chlorine have fractional atomic mass?

Chlorine has atomic fractional due to mass 35.5.

How do you find the fractional atomic mass of chlorine?

Atomic masses of the isotopes of chlorine are 35 and 37. However, in any given sample of chlorine gas, the isotopes occur in the approximate ratio 3:1, 75\% of Cl35 and 25\% of Cl37. So, the relative atomic mass or atomic weight of chlorine is 35.5.

Can the atomic number be a fraction?

Mass number is the sum no. of neutrons and no. of protons. Hence Atomic can be fractional but Mass number is always a whole number.

What is the symbol and atomic number of chlorine?

Cl
Chlorine is a chemical element with symbol Cl and atomic number 17.

Why is atomic mass of chlorine taken as 35.5 u and not a whole number like 35 u or 36 u explain?

Answer: The reason for the atomic mass of chlorine taken as 35.5u and not as 35u because of the presence of isotopes. Isotopes are defined as variants of a particular element where these variants will have the same number of protons but differ in the number of neutrons in the atom.

Why are the atomic masses of some elements fractional and not whole numbers explain with suitable example?

Answer: The atomic masses of most elements are fractional because they exist as a mixture ofisotopes of different masses. Most elements occur as a mixture of isotopes of different masses. The fractional atomic masses arise because of this mixture.

How do you find the fractional atomic mass?

To calculate the average atomic mass, multiply the fraction by the mass number for each isotope, then add them together.

Which of the following has fractional atomic mass?

neutrons, protons and electrons combine to give fractional masses.