List the Number of Protons, Neutrons, and Nucleons (Protons $^{137}_{~~56}$ Ba
A) 56, 81, 137
B) 81, 56, 137
C)

question 71

Multiple Choice

List the number of protons, neutrons, and nucleons (protons + neutrons) , in that order, for an isotope with the symbol: $^{137}_{~~56}$ Ba

• A) 56, 81, 137
• B) 81, 56, 137
• C) 56, 137, 193
• D) 137, 56, 193
• E) 81, 137, 218

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Definitions:

Random Assignment

A method used in experiments where participants are allocated to different groups in a way that each has an equal chance of being assigned to any group, ensuring variability is spread out evenly.

Experimental Groups

Groups in an experimental study that receive the treatment or intervention being tested, as opposed to control groups.

Control Groups

Control groups are used in experiments as a baseline to compare against the treatment group to determine the effect of a variable being tested.

Placebo Group

A control group in a study that receives a sham treatment, allowing researchers to compare the effects of the real treatment on another group.