Question

__________________ loses its outer electrons more easily than the other elements in group 1 due to its __________________.

Answer 1

Answer: 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.

Answer 2

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

Step-by-step explanation:

• The elements of group 1 has only one electron in its valence shell.
• The minimum energy needed to remove the outermost electron from the valence shell of the atoms of an elements known as the ionization energy.
• The ionization energy or enthalpy decreases down the group in the periodic table that means the electron in the valence shell of the last element(francium) of the group will be removed easily.

Result: Francium has lowest ionisation energy in group 1.