Question

1. which ion will have an overall charge of 1+ a. lithium b. fluorine c. potassium d. sulfur 25) which ion will have an overall charge of 1- a. lithium b. fluorine c. potassium d. sulfur

Explanation:

Step1: Determine ion - formation rules

Metals lose electrons to form cations (positive ions) and non - metals gain electrons to form anions (negative ions).

Step2: Analyze lithium

Lithium (Li) is in Group 1. It has 1 valence electron. It loses this 1 electron to form a Li⁺ ion with a 1+ charge.

Step3: Analyze fluorine

Fluorine (F) is in Group 17. It has 7 valence electrons. It gains 1 electron to form an F⁻ ion with a 1 - charge.

Step4: Analyze potassium

Potassium (K) is in Group 1. It loses 1 electron to form a K⁺ ion with a 1+ charge, but for question 24 we already have lithium as a correct option for 1+ charge and for question 25 it is not relevant for 1 - charge.

Step5: Analyze sulfur

Sulfur (S) is in Group 16. It gains 2 electrons to form an S²⁻ ion, not a 1+ or 1 - ion as required in the questions.

Answer:

1. a. lithium
2. b. fluorine