2.1QA-Review

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2.1 QA Review

1- Atomic Nuclei are formed through the process of: a- nuclear fusion b- nuclear fission

2- Atomic nuclei are held together by: a- strong nuclear force b- weak nuclear force c- electro-magnetism d- gravity

3- Atomic nuclei are formed in: a- stellar cores b- supernova explosions c- all of the above

4- Fusion of nuclei is accomplished by binding of: a- electrons and protons b- electrons and neutrons c- protons and neutrons

5- Fusion of heavier nuclei occurs in: a- higher temperatures in stellar cores b- lower temperatures in stellar cores

6- What atomic nuclei is the starter fuel for the fusion process in the stellar cores: a- carbon b- oxygen c- hydrogen

7- which atom requires higher production temperatures than atom of carbon: a- helium b- iron

8- Heavier atomic nuclei are produced in stars with: a- less mass b- more mass c- mass doesn't matter

9- Which of these statements are true: a- protons and neutrons are fused in a strictly one to one manner (a neutron for a proton) b- there can be more than one neutron for one proton in a nuclei, creating hevier isotopes of the same nuclei

10- Which statement is true: a- all of the atomic nuclei in the periodic table of elements are produced in stellar core fusion processes b- stellar core fusion processes can accommodate temperatures up to the production of iron, heavier elements require higher temperature/pressures of supernova, hyper-nova events

Answers

1-a, 2-a, 3-c, 4-c, 5-a, 6-c, 7-b, 8-b, 9-b, 10-b