An Isotope with Mass Number 81 Has Eleven More Neutrons

question 109

Multiple Choice

An isotope with mass number 81 has eleven more neutrons than protons.This is an isotope of what element?

• A)Tl
• B)Yb
• C)Zr
• D)Br
• E)Nb

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Definitions:

Commodity

A basic good used in commerce that is interchangeable with other goods of the same type.

Grain Surplus

An excess amount of grain production over the demand, leading to stored or wasted grain.

Market Economy

An economic system where decisions regarding investment, production, and distribution are based on supply and demand, and prices of goods and services are determined in a free price system.

Price Floor

A government-set minimum price that can be charged for goods and services, aimed at protecting producers.