Which statement describes the general trends in electronegativity and metallic properties as the elements in period 2 are considered in increasing atomic number?
(1) both electronegativity and metallic properties decrease.
(2) both electronegativity and metallic properties increase.
(3) electronegativity decreases and metallic properties increase.
(4) electronegativity increases and metallic properties decrease.

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.