Match the scientist with their contribution to atomic theory.
john dalton
jj thomson
ernest rutherford
james chadwick
-less than 100 years ago he discovered a subatomic particle that does not have a charge
-used a cathode ray tube to detect negative charges
-concluded that the atom is mostly empty space with a dense nucleus that contains most of the atom's mass
-supported the ideas of democritus using the scientific method

Um google the question and answer them.

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

The answer is not c

Ibelieve it is b. proton.hope my answer has you : )