U
Identifying lons
Warm-U
Which ion is formed when an atom of fluorine (F) gains one electron?
ooo

fluoride ion with a charge of -1

Explanation:

If a fluorine atom gains an electron, it becomes a fluoride ion with an electric charge of -1.

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.