The table compares some characteristics of two atoms. Use the table to determine the number of protons for each atom. Then, choose the statement below that is true about the two atoms. (5 points) O Atoms X and Atom Y are in the same family. O Atom X is in a column to the right of Atom Y on the periodic table.
O Atom X and Atom Y are in the same row on the periodic table.
O Atoms X and Atom Yare isotopes.​

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.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )