Sound waves travel the same speed through all mediums (solids, liqiuds, and gases). A
True
B
False

False

Explanation:

Sound waves are longitudinal waves which means they vibrate in the same direction as the direction of travel. They are produced by vibrating sources, such as speakers. Sound waves can only travel through a solid, liquid or gas medium. They travel fastest in solids, then liquids and slowest in gases.

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."