B. 4 7. A fluorine atom has 9 electrons - 7 in its outer shell and 2 in its inner shell. How many
electrons would be in the outer shell if it were to become a fluoride ion?
A, 2
C.6
D..1 E. 8
8. Sodium (Na) (#11) has 2 electrons in its inner shell, 8 in its next shell and 1 in its outer
shell.
What type of ion would it form?
A. Nal- B. Na-
C. Na2+ D. Nal+-
E. Na 7-

I think you should go ask it again for a quality person to answer.

idc really

there all right good

explanation:

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml