What is electrical energy being transformed into? How do you know? girl blow drying her hair
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It is being transformed into heat and sound energy because I know a hair dryer produces hot air and makes noise.
It is being transformed into heat and sound energy because I know a hair dryer pushed out air and produces hot air.
It is being transformed into heat energy because I know a hair dryer produces hot air.
It is being transformed into heat, sound, and energy of motion because I know a hair dryer pushes out air, produces hot air, and makes noise.

first one is the correct answer

"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."

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons