Which of the following statements best describes the change depicted in figure p1.4?

Answer : The correct option is (C)

Explanation :

Condensation : It is a type of process in which the phase changes from gaseous state to liquid state at constant temperature. In this process, there is some intermolecular space present between the atoms of molecule.

Deposition : It is a type of process in which the phase changes from gaseous state to solid state without passing through the liquid state at constant temperature. Or we can say that in deposition process, the molecules are settle down at the bottom of the container. In this process, there is no intermolecular space present between the atoms of molecule.

From the given image we conclude that a mixture of two gaseous elements undergoes deposition because in first image, both the elements (red and blue) present in gaseous phase but in second image, red elements have no intermolecular space between them and they are settling down at the bottom that means deposition occurs.

Hence, the correct option is (C)

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.