How do you use the periodic table to recall the ionic charge of an alkali metal, an alkaline earth metal, or aluminum?

Question

The negative charge is the period number.

The positive charge is the group number.

The positive charge is the period number.

The negative charge is the group number.

Answer 1

To recall the ionic charge of an alkali metal (Group 1), alkaline earth metal (Group 2), or aluminum (Group 13), you can refer to the periodic table.

For alkali metals such as lithium, sodium, and potassium (Group 1), their ionic charge is always +1. For alkaline earth metals such as beryllium, magnesium, and calcium (Group 2), their ionic charge is always +2.

For aluminum (Group 13), its ionic charge is typically +3. However, it is important to note that the actual ionic charge can vary depending on the specific compound or chemical reaction involved.

By using the periodic table and remembering the general trends for these groups of elements, you can easily recall their typical ionic charges.

Answer 2

so is it a b c or d

Answer 3

The correct answer is:

The positive charge is the group number.

So, in this case, it would be answer choice B.