7)The mass of an electron is approximately equal to 1/1368 of the mass of A)a positron
B)a proton
C)an alpha particle
D)a beta particle

B

Explanation:

answer by yourhope:

how do models compare to real-world objects?

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

: )

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.