which compound shows a correctly written formula between the atoms shown?\na. alar\nb. alar₃\nc. alcl\nd…

which compound shows a correctly written formula between the atoms shown?\na. alar\nb. alar₃\nc. alcl\nd. alcl₃

which compound shows a correctly written formula between the atoms shown?\na. alar\nb. alar₃\nc. alcl\nd. alcl₃

Answer

Answer:

D. AlCl₃

Explanation:

Step1: Identify the elements

The first atom has 13 protons (p), so it is aluminum (Al) with a common +3 oxidation state. The second atom has 17 protons, so it is chlorine (Cl) with a - 1 oxidation state.

Step2: Determine the formula

To form a neutral compound, the charges must balance. Since Al has a +3 charge and Cl has a -1 charge, we need 3 Cl atoms for every 1 Al atom. So the formula is AlCl₃.