Can the value of 'Z' be same for two different atoms?

Is there anything inside atoms that make them to be same or different?

Would you expect IE_(1) for two isotopes of the same element to be the same or different? Justify.

Draw to different rectangles having the same perimeter. Compare their areas Are they same? Can you draw two different square having the same perimeter.

(A) : Two bodies at the same temperature may contain different amount of heat. ( R) : Two bodies containing the same amount of heat may be at different temperatures.

Draw two different rectangles having the same perimeter. Compare their areas. Are they same? Can you draw two different squares having the same perimeter.

How can you identify the type of bond formation between two atoms ?

Two uniform circular discs having the same mass and the same thickness but different radii are made from different materials. The disc with the smaller rotational inertia is