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Why atomic weight of chlorine is 35.5 though isotopes of chlorine 35 and 37?
Wiki User
∙ 11y ago
The atomic weight for each element on the Periodic Table represents a weighted average of the masses of all naturally occurring isotopes of an element. Because of this, the elements do not have whole-number atomic weights. An exception is the atomic weight for some elements written inside parentheses. These elements do not have stable isotopes and the atomic weight listed is the atomic weight for the longest lived isotope.
Wiki User
∙ 11y ago
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Is the atomic weight of chlorine 35.5 because of electrons?
No, electrons only make a negligible contribution to atomic weight. On the periodic table the atomic weight listed for most of the elements is the average of that element's isotopes. Chlorine has 2 common isotopes: Chlorine-35 (75.77% of all chlorine) and chlorine-37 (24.23%) This works out to an average mass of about 35.5.
What is need to determine atomic mass of chlorine?
For the determination of the atomic weight (not mass) of chlorine we need to know the isotopic composition of Cl and the atomic masses of the isotopes.
Why is the atomic weight of chlorine 35.623?
It is not. It is 35.453. On the periodic table, the atomic weight listed for most of the elements is the average of that element's isotopes. Chlorine has 2 common isotopes: Chlorine-35 (75.77% of all chlorine) and chlorine-37 (24.23%). This has two extra neutrons. This works out to an average of about 35.5 or what is stated in the question.
What is the atomic number and atomic mass number of chlorine?
The atomic number of chlorine is 17.The atomic weight (after the IUPAC rules weight is the correct word in thiscase, for elements, not mass; mass is used only for isotopes) of chlorine is[35,446; 35,457], after the IUPAC tables, 2009 edition.
Why chlorine has atomic weight 35.5 though no chlorine with mass exist in nature?
The atomic weight (not mass) of chlorine is now [35,446; 35,457]. I don't understand "no chlorine with mass exist in nature".
Is the atomic weight of chlorine 35.5 because of electrons?
No, electrons only make a negligible contribution to atomic weight. On the periodic table the atomic weight listed for most of the elements is the average of that element's isotopes. Chlorine has 2 common isotopes: Chlorine-35 (75.77% of all chlorine) and chlorine-37 (24.23%) This works out to an average mass of about 35.5.
What is need to determine atomic mass of chlorine?
For the determination of the atomic weight (not mass) of chlorine we need to know the isotopic composition of Cl and the atomic masses of the isotopes.
Why is the atomic weight of chlorine 35.623?
It is not. It is 35.453. On the periodic table, the atomic weight listed for most of the elements is the average of that element's isotopes. Chlorine has 2 common isotopes: Chlorine-35 (75.77% of all chlorine) and chlorine-37 (24.23%). This has two extra neutrons. This works out to an average of about 35.5 or what is stated in the question.
According to the Periodic Table of Elements Chlorine has 35.45 protons?
No. chlorine has an atomic weight 0f 35.45. and has an atomic number (number of pprotons) of 17. It has two naturally occuring isotopes chlorine-35 and chlorine -37. It is the presence of these that causes the fractional atomic weight
Why is choline 35.5 on the periodic table?
On the periodic table, the atomic weight listed for most of the elements is the average of that element's isotopes. Chlorine has 2 common isotopes: Chlorine-35 (75.77% of all chlorine) and chlorine-37 (24.23%). This has two extra neutrons. This works out to an average of 35.453.
What is the atomic number and atomic mass number of chlorine?
The atomic number of chlorine is 17.The atomic weight (after the IUPAC rules weight is the correct word in thiscase, for elements, not mass; mass is used only for isotopes) of chlorine is[35,446; 35,457], after the IUPAC tables, 2009 edition.
Why chlorine has atomic weight 35.5 though no chlorine with mass exist in nature?
The atomic weight (not mass) of chlorine is now [35,446; 35,457]. I don't understand "no chlorine with mass exist in nature".
How do you determine the atomic mass of chlorine?
Well, the CI atomic number is 17. The atomic mass is 35.4527 amu.There are two stable isotopes of chlorine with relative mass numbers 35 and 37. As the relative abundance of these isotopes are 75% and 25% respectively, the molar mass of chlorine is considered as 35.5 g/mol.
Which are isotopes of hydrogen and chlorine?
Chlorine has isotopes with mass numbers ranging from 32 to 40. There are two principal stable isotopes, 35Cl (75.77%) and 37Cl (24.23%), giving chlorine atoms in bulk an apparent atomic weight of 35.5 g/mol.
Where does the 0.5 in chlorine's atomic mass come from?
The atomic mass of chlorine is a weighted average of the masses of all its naturally occurring isotopes, taking into account their abundance. Chlorine has two main isotopes, chlorine-35 (with an atomic mass of approximately 34.97) and chlorine-37 (with an atomic mass of approximately 36.97). The 0.5 difference in the atomic mass comes from the relative abundance of these isotopes in nature.
How you calculate the relative atomic weight of uranium?
The atomic weight of an element is derived from the atomic masses of the isotopes of this element and from the percentage of these isotopes. The correct terms are: - atomic weight for elements - atomic mass for an isotope
What is the same in isotopes?
isotopes always have the same? mass # & atomic #, or atomic # and atomic weight, or atomic # but different mass #'s
