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The Atomic Mass of Metallo

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You may have noticed on the periodic table that the atomic mass of an element is usually not a whole number. That happens because of isotopes. An atom that is missing a neutron or has an extra neutron is called an isotope. They are still the same element; however, they are just a little different from every other atom of the same element.

Most of the carbon atoms in the universe are Carbon-12, with 6 neutrons. A small percentage of carbon atoms are Carbon-13, with 7 neutrons, and an even smaller percentage are Carbon-14 and have 8 neutrons. Carbon-13 and Carbon-14 are isotopes of carbon.

Atomic mass is calculated by determining how many atoms of each isotope type are present in the universe. Since the isotopes of carbon make up only a small percentage of the carbon in the universe, the average of the masses of all carbon atoms is slightly higher than 12, so the atomic mass for carbon is actually 12.011. Objective

Analyze the isotopes of “Metallo” and to calculate its atomic mass Materials sample of metallo (bag of mixed nuts, bolts, and washers) balance

Obtain a sample of the new element “Metallo.”
Separate the three isotopes of Metallo (nuts, washers, bolts) and measure the mass of each isotope.
Count the numbers of each isotope.

Explain the difference between percent abundance and relative abundance. What is the result when you total the individual percent abundances? The individual relative abundances? Relative abundance is comparing the isotopes. The percent of abundance is the complete total. when i added all the relative abundances i got 1. and 100 on the other.

The percent abundance of each isotope tells you how many of each kind of isotope exist in every 100 particles. What does relative abundance tell you? it refers to how much a isotope is present in a given amount of sample

Compare the total values for Rows 3 and 6 in the Data Table. Explain why the totals differ and why the value in Row 6 best represents the atomic mass. row 3 have larger numbers then row 6. the relative mass is smaller because thats an accurate number of the isotopes . row 6 best represents the atomic mass because its more precise

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