Do the figures in this partial periodic table demonstrate the trend in atomic radius, ionic radius, or neither of these? Relate your answer to the structure of atoms across the periodic table.

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false