Which of the following correctly compares the radii of f and f−?

F has a smaller radius than F− due to an additional electron that causes greater repulsion in F−

Explanation:

F is a non-metal in a group of the periodic table called halogens.F reacts by gaining electrons to form a negatively charged ion F- which has an additional electron.Atomic radius is the radius of an atom such an F atom while the ionic radius is the radius of an ion formed when an atom gains or loses electron(s). The atomic radius of F is smaller than the ionic radius of F- due to the presence of an additional electron in F- which increases the repulsion and decreases the attraction by the nucleus.

False because saturated fatty acids contain only single bond

the catch is that the top numbers are atomic masses the bottom numbers are the numbers of protons and electrons in an uncharged atom. they are the number of that atoms as you would find them on the periodic table. further, the numbers on the left are used to determine the missing numbers on the right

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer