1d1 & 1d2 Remediation Average Atomic Mass

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Science

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10th - 12th Grade

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ANGELA SWILLEY

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2 Slides • 5 Questions

1d1 & 1d2 Remediation

Average Atomic Mass

Multiple Choice

24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?

74.92 amu

24.97 amu

75.01 amu

74.51 amu

Multiple Choice

An element with 4.35% have a mass of 49.9461 amu, 83.79% have amass of 51.9405 amu, 9.50% have a mass of 52.9407 amu, and 2.36% have a mass of 53.9389amu.

51.99 amu

52.19 amu

53.45 amu

17.33 amu

Multiple Choice

The atomic mass of an element is the ___.

average of the mass number and the atomic number for the element

weighted average of the masses of the isotopes of the element

total mass of the isotopes of the element

total number of subatomic particles in the nucleus

Multiple Choice

Chlorine has two naturally occurring isotopes, Cl-35 and Cl-37, The atomic mass of chlorine is 35.45. Which of these two isotopes of chlorine is more abundant?

Cl-35

Cl-37

Cannot be determined from the information provided.

Multiple Choice

Calculate the average atomic mass of silver.

106.38649amu

111.91896amu

107.8677amu

121

1d1 & 1d2 Remediation

Average Atomic Mass

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