use the periodic table to answer the following questions. what is the predicted order of first ionization…
use the periodic table to answer the following questions. what is the predicted order of first ionization energies from highest to lowest for beryllium, calcium, magnesium, and strontium? be > ca > mg > sr be > mg > ca > sr ca > sr > be > mg sr > ca > mg > be
Answer
Explanation:
Step1: Recall ionization - energy trend
Ionization energy decreases down a group in the periodic table. Beryllium (Be), magnesium (Mg), calcium (Ca), and strontium (Sr) are all in Group 2 (alkaline - earth metals).
Step2: Arrange elements based on position
As we move down Group 2 from top - to - bottom, the order of elements is Be, Mg, Ca, Sr. So, the first ionization energy decreases in the order Be > Mg > Ca > Sr.
Answer:
Be > Mg > Ca > Sr