Question

use the list to answer the question. which two elements in the list would bond together based on their ionic charges? • potassium, group ia • calcium, group iia • iodine, group viia • neon, group viiia (1 point) ○ calcium and neon ○ potassium and neon ○ potassium and iodine ○ calcium and potassium

Explanation:

Step1: Determine ionic charges

Elements in Group IA (like potassium) form +1 ions, Group IIA (like calcium) form +2 ions, Group VIIA (like iodine) form - 1 ions, and Group VIIIA (like neon) are noble - gases and are generally unreactive and do not form ions easily.

Step2: Identify ion - pair for bonding

An ionic bond forms between a metal (cation) and a non - metal (anion). Potassium (+1 charge) can bond with iodine (-1 charge) to form an ionic compound.

Answer:

Potassium and iodine