7) Element Families on the Periodic Table have similar . There are Families. 8) Alkali Metals are good conductors of and .

9) There are a total of elements that are grouped as Transition Metals.

10) As opposed to metals, non-metals can be very . They have no metallic

and do not reflect .

11) All Lanthanide Series elements occur naturally except for .

12) All Actinide Series elements are and most are

The gas would begin to expand, and eventually the can would burst or explode.

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