1. a scientific hypothesis can become a theory if
a) the entire community accepts it
b) the hypothesis is tested extensively and competing hypothesis are eliminated
c) there are no other competing hypothesis
d) the hypothesis can be tested at least once
2) a preliminary untested explanation that tries to explain how or why things happen in the manner observed is a scientific
a) law
b) theory
c) fact
d) hypothesis

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Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.