Calcium: atomic number 20

Open Access Chemistry Journals

Could anyone please tell me the list of Open Access Chemistry Journals and those publilshers?


How do you find the number of neutrons if you know the number of electrons?

error in units

The units of resistivity don't come out right.

10^-8 Ohm * m
m Ohm * cm

the 'm' should be a 'mu', but unfortunately they both look the same in the latin alphabet.


Properties of Ca


I am a first semester chemistry student in college taking Chem-1406 Essential/General Chemistry. I am working on an extra credit assignment that is supposed to be 22 slides long done in powerpoint. Well he gives us the criteria he wants on each slide about an element of our choosing but I am a little confused on what he means by "Properties" of calcium. Does he mean the subatomic particles or something else? Also he ask us to list the row in which our element is located. I don't know "rows" but I do know the groups and periods. Does "Row" fall into one of these two items?

Thank You,

i need help on something.

ok im doing a science fair project and im testing the amounts of calcium carbonate in eggs. so im looking for anything and everything on eggs or calcium. thankyou


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