(will mark as brainliest! )

describe the trend that appears when moving down a grouping of elements on the periodic table in regards to the orbitals in each elements atomic structure.

(keep in mind that this is a written assignment)

13) a 14) a15) b16) i don't know sorry17) a (maybe)

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.