When writing the name for a compound containing a transition metal, a roman numeral is placed in between the two elements. What does the roman numeral signify?
a. The number of protons in the transition metal
b. The number transition metal atoms in the compound
c. The number of the non metal atoms in the compound
d. The oxidation number of the transition metal

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

i don,t know so just answer mine