Figure 2-1 ​ What Is the Atomic Mass of the Atom Identified as the Atom

question 36

Multiple Choice

Figure 2-1 ​

What is the atomic mass of the atom identified as A in the accompanying figure?

• A) 2 amu
• B) 6 amu
• C) 8 amu
• D) 12 amu
• E) 18 amu

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Definitions:

Geologic Time

The exceptionally long period of time dealt with by geology; the time extending from the formation of Earth to the beginning of written history.

Precambrian

The long span of time before the Phanerozoic Eon, making up around 88% of Earth's history, marked by the formation of the earth and early life forms.

Geologic Timescale

A system of chronological dating that relates geological strata to time, used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events in geologic history.

Ecosystems

Communities of living organisms and their physical environment interacting as an integrated system.