The atomic number of chlorine is 17. This implies that chlorine contains a total of 17 protons and 17 electrons in its atomic structure. These electrons are arranged into 3 primary electron shells. The first electron shell belonging to chlorine contains a total of two electrons whereas the second electron shell of chlorine contains 8 electrons.

2017年4月3日 · The average atomic mass of some substance is measured with the percentages of how much they exist in nature. An average is always calculated by adding up the numbers and divide that by the amount of number you had, so, for example, the average for the numbers 1, 3, and two times 7 is:

An average sample of chlorine contains 75.77% chlorine-35, with an atomic mass of 34.969 amu (atomic mass units), and 24.23% chlorine-37, with an atomic mass of 36.966 amu. What is the average atomic mass of chlorine?

The atomic mass of an atom is a feature that is closely related to its mass number. A single atom’s atomic mass is just its total mass, and it is commonly given in atomic mass units or amu. Carbon-12, an atom of carbon-containing six neutrons, has an atomic mass of 12 amu. Other atoms typically do not have round-number atomic masses.

The average atomic mass of Cl: The average atomic weight is the total weight of the sample divided by the number of molecules in the sample. ∴ Average atomi c mass of chlorine = ∑ m i A i 100 m i = isotopic atomic mass A i = % abundance of isotope Average atomi c mass of chlorine = (34.9689 × 75.77 100) + (36.9659 × 24.23 100) = [26.4959 ...

Chlorine exists as two isotopes, Cl-35 and Cl-37. Cl-35 is 75% abundant whereas Cl-37 makes up the remaining chlorine. When we consider the atomic mass of Cl, we take the average mass of Cl atoms. Average wt. = 0.75 x 35 + 0.25 x 37 = 35.5

The average mass is the relative atomic mass, which can be easily calculated from the percentage composition ( % abundance). An element’s relative atomic mass, Ar, is calculated as follows: The mass numbers of its isotopes; The abundance of these isotopes; The formula that can be used to calculate the relative atomic mass:

2018年4月28日 · The answer to why chlorine has an atomic weight of 35.5 not 35 is because of something called isotopes. Chlorine-35 has 17 protons and 18 neutrons and occurs in nature about 75% of the time. Chlorine-37 has 17 protons and 20 neutrons and occurs in nature about 25% of the time. So, when the mass of chlorine is measured using an instrument called a …

The average mass of an element's naturally occurring isotopes compared to the mass of an atom of 12 C is defined as its relative atomic mass. Relative atomic mass of chlorine is as follows: Relative atomic mass = 75 100 × 35 + 25 100 × 37 = 35. 4 u. As a result, the atomic mass of chlorine is 35. 5 u rather than a full number like 36 u or 35 u.

The atomic number of chlorine is 17 and the mass number is 35.5. Chlorine has two common isotopes, chlorine-35 and chlorine-37. In nature, chlorine-35 occurs about 75 % and 25 % of chlorine-37.