History Bookmarks People Window Help MasteringChemistry: UNIT 2: TUTORIAL Update

Question

History Bookmarks People Window Help MasteringChemistry: UNIT 2: TUTORIAL Updates Some up automatc A, session.masteringchemistry.com/myct/itemView?assignmentProblemiD 93575033 RIAL tion-Build an Atom ET simulation, make sure that the checkbox Stable/Unstable in the bottom right is checked. Using the PhET simulation as a reference, the following combinations of protons and neutrons form stable or unstable nuclei by adding protons and neutrons to the nucleus. Unstalt the Stable/Unstable checkbox in the lower right is also checked, the nuclei will be labeled Stable or Unstable. Sort the following combi and neutrons according to whether or not they form stable or unstable nuclei e appropriate items to their appropriate bins Available Hint(s) Reset H 2 protons and 0 neutrons 1 proton and O neutrons and 6 neutrons 8protons and 8 neutrons 4 protons and S neutrons 6 protons and 8 neutrons 9 protons and 9 neutrons Unstable Stable

Explanation / Answer

Stable nuclei are those whose neutron and proton ratio lies in between 1 & 1.5(n/p ratio).Whichever nuclei has the ratio below or above it they are unstable.

In the above listed ones the one which fall under

Stable: 8 protons & 8 neutrons (n/p = 8/8 =1), 5 neutrons & 4 protons (n/p = 1.25), 8 neutrons & 6 protons(n/p = 1.33), 9 protons & 9 neutrons(n/p =1).

Unstable: 0 neutrons & 2 protons ,0 neutrons & 1 protons as their n/p ratio is 0, 6 neutrons & 7 protons ( n/p = 0.857 & 2 neutrons & 1 protons ( n/p =2).

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