Nickel Has a Lower Atomic Mass Than Cobalt, Even Though

question 13

Multiple Choice

Nickel has a lower atomic mass than cobalt, even though it has a higher atomic number. One possible explanation is that one of the average atomic masses was miscalculated. In the case of cobalt, there is only one isotope: 100% ⁵⁹Co at a mass of 58.9332 amu. For nickel, however, there are five isotopes as given in the table. $\begin{array}{|l|l|l|}\hline \text { Isotope } & \text { mass }(\mathrm{amu}) & \text { abundance } \\\hline{ }^{58} \mathrm{Ni} & 57.9354 & 67.76 \% \\\hline{ }^{60} \mathrm{Ni} & 59.9308 & 26.16 \% \\\hline{ }^{61} \mathrm{Ni} & 60.9311 & 1.25 \% \\\hline{ }^{62} \mathrm{Ni} & 61.9283 & 3.66 \% \\\hline{ }^{64} \mathrm{Ni} & 63.9280 & 1.16 \% \\\hline\end{array}$ Using the data in the table, what is the average atomic mass for nickel

• A) 60.45 amu
• B) 58.70 amu
• C) 59.75 amu
• D) 58.10 amu
• E) 59.25 amu

Explore the role of minority influence and the processes through which minorities can impact group norms and decisions.

Understand the impact of group size, composition, and cultural background on conformity and social influence.

Consider the role of self-categorization in social influence, emphasizing how individuals perceive and align with group norms.

Understand the characteristics and behaviours of minorities that can challenge and influence the majority viewpoint.

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Definitions:

Competing Products

Goods or services offered in the market that serve similar needs or desires of consumers, often leading to a choice preference based on price, quality, or other attributes.

Technological Advance

The progress or improvement in technology, leading to more efficient processes, products, or services.

Production Process

is the series of steps or operations involved in the manufacture of goods or services.

Short-Run Adjustments

Refers to the changes firms make in response to changing market conditions in the short term when at least one production factor is fixed.