What must occur for a hypothesis to be considered fully proven? A:newspapers must report event
B:public opinion must agree with results
C:there must be a specific number of controlled experiments
D:other scientists must repeat the experiment and get the same results

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

"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."

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)