A half-cell contains `"____"` of an element .

A-set contains 4 elements. It’s power set will contain _______ element.

Write the half cell reactions of Daniel cell.

First period contains ______elements.

The third period contains _________ elements .

State the following statement is true or false. A positive half-cell potential implies that the element can lose its electrons more readily than hydrogen.

The second period contains _________ elements .