Question

PLEASE HELP!!

1. Which has a lower ionization energy: strontium (Sr) it barium (Ba)?

2. Which has greater electronegativity: bromine (Br) or iodine (I)?

Answer 1

1. Strontium has a lower ionization energy than barium.

2. Bromine has a greater electronegativity than iodine.

Hopefully someone else can give you the rest of the answers because I haven't got a clue for the rest.

Answer 2

Strontium (Sr) has a lower ionization energy. Bromine (Br) has greater electronegativity.

1. Lower Ionization Energy:

- Ionization energy generally decreases as you move down a group in the periodic table.

- Strontium (Sr) is located above barium (Ba) in the same column (Group 2 or alkaline earth metals).

- Therefore, strontium has a lower ionization energy than barium.

Therefore, Strontium (Sr) has a lower ionization energy.

2. Greater Electronegativity:

- Electronegativity generally increases as you move across a period from left to right in the periodic table.

- Bromine (Br) and iodine (I) are in the same group (Group 17 or halogens), but they are in different periods.

- Since iodine is farther down the periodic table, it has a lower electronegativity compared to bromine.

Therefore, Bromine (Br) has greater electronegativity.