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It is its Atomic Mass and why atomic mass is frequently not a whole number.
What else can I help you with?
What is needed to find the average atomic mass of the element?
To find the average atomic mass of an element, you need to know the isotopic masses of each of its isotopes and their relative abundances. Multiply the isotopic mass of each isotope by its relative abundance, then sum these values to calculate the average atomic mass.
If an element has three isotopes with known natural abundance percentages what other information is needed to find the average atomic mass of the element?
The abundance percentage of each isotope
To determine the molar mass of an element one must know the elements what?
To determine the molar mass of an element, you must know the atomic mass of the element, which is found on the periodic table and is measured in atomic mass units (amu). This value represents the average mass of all the isotopes of that element.
How is the average mass number of an element is determained?
The atomic number (the mass) of an element is determined by finding the masses of the isotopes of that element, adding them all together, and dividing by the number of isotopes. (The Atomic number is the average of all the masses.)
If an element has 3 isotopes with known masses what other information is needed to find the average atomic mass of the element?
The abundance of each isotope is needed to find the average atomic mass of the element. The average atomic mass is calculated by multiplying the mass of each isotope by its abundance, summing those values, and then dividing by 100 to get the average atomic mass in atomic mass units.
Elements average atomic mass?
The average atomic mass of an element is the weighted average of the masses of the isotopes of that element, taking into account their natural abundance. It is usually expressed in atomic mass units (u) and can be found on the periodic table for each element. The average atomic mass provides a more accurate representation of the mass of all the isotopes of that element.
What is the atomic mass of element f?
The atomic mass of an element is the weighted average mass of its isotopes. To determine the atomic mass of element F, you would need to know the abundance of each isotope and its individual atomic mass, and then calculate the weighted average based on those values.
As an element occurs as a mixture of naturally occurring isotopes what is the atomic mass of the element based upon?
The atomic mass of an element is based upon the weighted average of the atomic masses of the naturally occurring isotopes of that element. We need to know what isotopes of a given element occur in nature, and what percentage of the natural abundance of an element each of those naturally occurring isotopes represents. What that means might be more easily seen if we just run through some examples. So let's run through some.We have an element with 3 naturally occurring isotopes. They occur equally. That is, each one represents a third of the natural atoms, or 33 1/3 % of them. If the atomic masses of our isotopes are 17, 18 and 19, and all occur equally, then it's 17 + 18 + 19 (which equals 54) divided by 3 which is 54 divided by 3 which is 18. Our atomic mass for the element cited is 18, and that represents all the natural isotopes and the percentage in which they occur. Pretty easy.We have an element with 4 naturally occurring isotopes. Here are their atomic masses and percent abundance: a = 46 (25%), b = 47 (50%), c = 48 (15%), and d = 49 (10%). There is a (fairly) simple process one can use to find the weighted average. Multiply the percent natural abundance times the atomic mass of each one and add them all together. Not to difficult, is it? Roll up your sleeves and let's have at it.46 x 25% = 11.547 x 50% = 23.548 x 15% = 7.249 x 10% = 4.911.5 + 23.5 + 7.2 + 4.9 = 47.1 atomic mass unitsSo now we have our atomic mass for our mystery element in example two. We calculated it by determining a weighted average of the naturally occurring isotopes. And that's very important information to take to the lab where we'll be measuring (weighing) some of this stuff.
Do all elements in the same group have the same atomic mass?
No. Atoms of the same element can have different masses as the number of neutrons can vary. Atoms of the same element but with different masses are called isotopes.
How do you know the difference between isotopes and an element?
Isotopes are atoms of an element having different number of electrons.
What is needed to find the average atomic mass of the element?
To find the average atomic mass of an element, you need to know the isotopic masses of each of its isotopes and their relative abundances. Multiply the isotopic mass of each isotope by its relative abundance, then sum these values to calculate the average atomic mass.
Do you need atomic number to find atomic mass?
No, you do not need the atomic number to find the atomic mass of an element. The atomic mass is the weighted average of the masses of the isotopes of an element, whereas the atomic number is the number of protons in the nucleus.
How do you know that hydrogen has isotypes?
every element has isotopes.
If an element has three isotopes with known natural abundance percentages what other information is needed to find the average atomic mass of the element?
The abundance percentage of each isotope
What data must you know about the the isotopes of an element to calculate the atomic mass of an element?
Number of protons
Why need to know the percentage of each isotope of an element to determine the atomic mass?
Because each isotope of an element has a mass different from any other isotope of the same element, and the atomic mass of an element is an average, weighted by the proportion of each isotope, in the naturally occurring element.
How do you know whether not atoms are isotopes?
Isotopes of a chemical element have a similar number of protons but a different number of neutrons.
