Short note on periods of periodic table

answer:

okay.

explanation:

a period in the periodic table is a row of chemical elements. each next element in a period has one more proton and is less metallic than its predecessor. arranged this way, groups of elements in the same column have similar chemical and physical properties, reflecting the periodic law.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.