Loses its outer electrons more easily than the other elements in group 1 due to its

Francium loses its outer electrons more easily than the other elements in group 1 due to its less ionization energy .

Result: Francium has lowest ionisation energy in group 1.

Cesium, shielding effect

Explanation: bc loses its outer electrons more easily than the other elements in group 1 due to its shielding effect. Increasing the number of energy levels between the nucleus and the outermost energy level results in effective shielding of the pull by the positive nucleus.

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.