List in order which digits are significant in the following numbers: a. 230 mL.
b. 0.00540 s
c. 1440
d. 50 ℃
e. 0.9405 g/cm3
f. 700 jellybeans
g. 1.05 x 106

 see below

Explanation:

Zeros between the digit and decimal point are NOT significant.

Zeros between digits ARE significant.

a. 230 mL.              sf: 23

b. 0.00540 s          sf: 540

c. 1440                    sf: 144

d. 50 ℃                  sf: 5

e. 0.9405 g/cm3    sf: 9405

f. 700 jellybeans    sf: 7

g. 1.05 x 10⁶            sf: 105

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).