Question

1. determine which element has the largest ionization energy based on the location in the periodic table. periodic table si ca cl ni

Explanation:

Step1: Recall the trend of ionization energy in the periodic table

Ionization energy generally increases across a period (from left to right) and decreases down a group.

Step2: Locate the elements in the periodic table

• Si (Silicon) is in period 3, group 14.
• Ca (Calcium) is in period 4, group 2.
• Cl (Chlorine) is in period 3, group 17.
• Ni (Nickel) is in period 4, group 10.

Since Cl is further to the right in its period compared to Si (and Ca and Ni are in lower periods or less to the right in their periods), it has a higher ionization energy.

Answer:

Cl