Hello!
The mass number in isotope notation is denoted A, the atomic number is denoted as Z, and the element is denoted as X.
In the given isotope, the mass of the isotope is 212 amu, and the atomic number is 82.
We know that the number of electrons, and protons are equal to the atomic number. Therefore, there are 82 protons. Also, to find the number of neutrons, we subtract the atomic number from the atomic mass.
212 - 82 = 130 neutrons
<u>Final answers</u>:
- Atomic Number: 82
- Mass number: 212
- Number of Protons: 82
- Number of Neutrons: 130
Answer:
The reaction is favorable at all temperatures
Explanation:
Since G = H - TS, -H and +S would result in G = -H -TS, which will always be negative.
The most appropriate SI unit used to measure the length of a book would be Centimeters.
The most appropriate SI unit to use for the volume of a book is centimeters cubed
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Answer:
<u>A Quantative Observation</u>: A type of observation which can be counted or measured, often using tools like a thermometer, a scale, or a ruler.
<u>Observation:</u> All the data collected during scientific investigations. It is best gathered by doing the investigation yourself, not reading other peoples’ work.
<u>Scientific Law</u>: a specific relationship under given conditions that tells what happens in the natural world. Based on a body of evidence, they are universal and will rarely if ever change.
<u>Scientific Theory</u>: a well-supported and widely accepted explanation of nature. They can and do change if new evidence arises.
I hope I got these right and I hope you got the help you wanted!
