Fluorine has 7 valence electrons. Which charge is its ion likely to have?(1 point)
1–
1+
5-
5+
Fluorine is likely to have a charge of 1-.
Ions Quick Check
5 of 55 of 5 Items
Question
Use the list to answer the question.
potassium, Group IA
calcium, Group IIA
iodine, Group VIIA
neon, Group VIIIA
Which two elements in the list would bond together based on their ionic charges?
(1 point)
potassium and iodine
calcium and neon
potassium and neon
calcium and potassium
The two elements in the list that would bond together based on their ionic charges are calcium and iodine.
Which two elements in the list would bond together based on their ionic charges?
(1 point)
potassium and iodine
calcium and neon
potassium and neon
calcium and potassium
The two elements in the list that would bond together based on their ionic charges are potassium and iodine.
Fluorine has 7 valence electrons, so it needs to gain one electron to achieve a stable electron configuration. Therefore, its ion is likely to have a charge of 1-.
To determine the likely charge of fluorine's ion, one can use the periodic table. Fluorine belongs to group 17 (also known as group VIIA or halogens) of the periodic table, and the number of valence electrons for an element in this group is equal to its group number. Thus, fluorine has 7 valence electrons.
When an atom gains or loses electrons, it forms an ion with a charge. In the case of fluorine, it is highly likely to gain one electron to achieve a stable electron configuration. By gaining one electron, fluorine would have a total of 8 electrons, which is the electron configuration of the noble gas neon (whose full electron configuration is 2-8).
Therefore, the likely charge of fluorine's ion is 1-.