An Element Found in Another Galaxy Exists as Two Isotopes

question 100

Multiple Choice

An element found in another galaxy exists as two isotopes.If 80.0 percent of the atoms have an atomic mass of 80.00 atomic mass units and the other 20.0 percent have an atomic mass of 82.00 atomic mass units,what is the atomic mass of the element?

• A)81.0 atomic mass units
• B)64.0 atomic mass units
• C)80.4 atomic mass units
• D)16.4 atomic mass units
• E)81.6 atomic mass units

---

Definitions:

Operating Activities

The day-to-day actions of a business involved in producing and selling its goods or services, which are reflected in the cash flow from operating activities.

Producing

The act of creating, manufacturing, or generating products or services.

Delivering Goods

The process of transporting goods from the seller or a fulfillment center to the buyer's location.

Statement Of Cash Flows

A financial statement detailing the cash inflows and outflows from operating, investing, and financing activities, showing how a company's cash position changes over time.