Investigations never involve hypothesis.

comparative
descriptive
experimental

Descriptive

Explanation:

A descriptive investigation can be define as the scientific process which does involves a claim or question but it does not involve a hypothesis. In this the observations are recorded, here no variables are manipulated, also there is no comparison between the variables takes place.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

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.