Question

the electron configurations of two unknown atoms are shown. the reaction between atom x and atom y in its gaseous state is usually done in a glass beaker lined with sand. this prevents the glass from cracking as a great amount of energy is released in the form of heat and light during the reaction. explain if similar precautions need to be followed for the reaction between potassium and atom y in its gaseous state

Explanation:

• First, determine the identity of Atom Y. Atom Y has 17 electrons (2 + 8+7), so it is chlorine (\(Cl\)).
• Potassium (\(K\)) is more reactive than Atom X (which is likely sodium, \(Na\) as it has 11 electrons: 2 + 8+1).
• The reaction of potassium with chlorine (\(2K+Cl_{2}

ightarrow 2KCl\)) is more exothermic than the reaction of sodium (Atom X) with chlorine. Since more heat is released, similar or even more stringent precautions (like using a heat - resistant container or thicker lining) are needed to prevent damage from the heat generated.

Answer:

Similar precautions (or more stringent ones) need to be followed. Potassium is more reactive than Atom X (likely sodium). The reaction between potassium and chlorine is more exothermic, releasing more heat. So, to prevent damage from the heat (e.g., cracking of the container), precautions similar to (or more than) those used for the reaction of Atom X and Atom Y should be taken.