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CHEMISTRY As discussed in the chapter, the atomic mass of argon is greater than that of potassium. This observation created a problem in the early development of the periodic table because it meant that argon should be placed after potassium. (a) How was this difficult resolved? (b) From the following data, calculate the average atomic masses of argon and potassium. Ar-36 (35.9675 amu, 0.337 percent), Ar-38 (37.9627 amu, 0.063 percent), Ar-40 (39.9624 amu, 99.60 percent), K-39 (38.9637 amu, 93.258 percent), K-40 (39.9640 amu, 0.0117 percent), K-41 (40.9618 amu, 6.730 percent) Verified answer PHYSICAL SCIENCE Verified answer Other Quizlet setsRelated questionsFlickr Creative Commons ImagesSome images used in this set are
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What are the 4 Statements of Dalton's atomic theory?1) All matter is made of atoms. Atoms are indivisible and indestructible. 3) Compounds are formed by a combination of two or more different kinds of atoms. 4) A chemical reaction is a rearrangement of atoms.
What are the 5 statements of Dalton's theory?Terms in this set (5)
Compounds are composed of atoms of more than 1 element. The relative number of atoms of each element in a given compound is always the same. Chemical reactions only involve the rearrangement of atoms. Atoms are not created or destroyed during chemical reactions.
What were the 5 most important points in Dalton's atomic theory?Atoms of a given element are identical in size, mass, and other properties. Atoms of different elements differ in size, mass, and other properties. Atoms cannot be subdivided, created, or destroyed. Atoms of different elements can combine in simple whole number ratios to form chemical compounds.
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Determine which statements are consistent with daltons atomic theory.
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