Answer the question and you'll get brainilest!

im just gonna explain how a speaker works and how it can make a window move. So a speaker has a crystal in it that when hit with and electric charge moves like a diaphragm that makes sound waves. the more electricity the slower it moves yet the slower it moves the bigger the movement. Anyway when that crystal moves it also moves the cardboard pice in front of it making a louder sound. The best way to think about it is a sound wave is like wind, its just moving air. so that moving air can push and pull something like a window pane. Cool Huh?

Explanation:

"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."

they are both synthetic elements

explanation:

d