CHOOSE ANSWER Speed
is a measurement of the rate of change of CHOOSE ANSWER

speed
with respect to time. The speed of an object is the CHOOSE ANSWER
the object travels per unit of CHOOSE ANSWER
. Because the speed of most moving objects is not constant, we frequently calculate the CHOOSE ANSWER
speed of an object as it travels. Average CHOOSE ANSWER
is calculated by CHOOSE ANSWER
the total CHOOSE ANSWER
an object traveled by the total amount of CHOOSE ANSWER
it took the object to travel that distance (s = d/t).

"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."

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