Re-order each list of elements in the table below, if necessary, so that the elements are listed in order of decreasing electronegativity.

F, O, B

O, Se, Te

Explanation:

As you go across the periods, electronegativity increases. As you go down a group, the electronegativity decreases. This means that the elements on the upper right side of the periodic table are the most electronegative elements, and the elements on the left lower side of the periodic table are the least electronegative.

:)

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

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)