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Chemistry 18 Online
iuytyuioiuytyuiop:

In the periodic table (check the attached periodic table), element's atomic number is stated on the top while mass number is not stated. In a nuclear symbol, however, ________________ a atomic number is not stated while mass number on the top b atomic number is stated on the bottom while mass number on the top c atomic number is stated on the top while mass number on the bottom d atomic number is stated on the bottom while mass number is not stated

iuytyuioiuytyuiop:

file:///C:/Users/owner/Downloads/Simple_Periodic_table_and_names.pdf

iuytyuioiuytyuiop:

is it C?

jimthompson5910:

The link you posted doesn't work. You'll need to post a screenshot instead.

iuytyuioiuytyuiop:

can you copy the link and paste it on your browser?

jimthompson5910:

Yeah I tried and it didn't work

iuytyuioiuytyuiop:

ok ill post a screenshot

iuytyuioiuytyuiop:

iuytyuioiuytyuiop:

is this good?

jimthompson5910:

yes that works, thanks

jimthompson5910:

This is an example of a nuclear symbol. See the attached image below The image is from this website https://chem.libretexts.org/Courses/Sacramento_City_College/SCC%3A_CHEM_300_-_Beginning_Chemistry/SCC%3A_CHEM_300_-_Beginning_Chemistry_(Alviar-Agnew)/04%3A_Atoms_and_Elements/4.08%3A_Isotopes-_When_the_Number_of_Neutrons_Varies From this example, we can see the mass number is on top while the atomic number is down below

jimthompson5910:

Sorry forgot to attach the image

iuytyuioiuytyuiop:

in my file it looks like the atomic number is above the element symbol

jimthompson5910:

Yes, but the number can be slightly moved around

iuytyuioiuytyuiop:

??????????

iuytyuioiuytyuiop:

so the option I should choose is B?

jimthompson5910:

choice B is correct

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