In which region of the periodic table do the elements not normally react chemically with other elements? a)metalsb)metalloidsc)non-metalsd)n oble gases

D = Noble Gases

Explanation:

Noble gases are elements found on the extreme left of the period table; the Group 8 elements which means complete outer shell hence complete octet, also called inert elements.

They are odourless, colourless with low chemical reactivity and sometimes exist as monotonic gases with low boiling and melting point. they include: Neon, Argon, Xenon etc.

Elements bond with other elements on the periodic table because of their incomplete outer shell. Bonding ensures that the completed outer shells of both elements by either losing or gaining (ionic bonds) or sharing (covalent bond) id filled as so they form stable compounds. Noble gases are inreactive because of their stability and hence, unlikely to gain or lose electrons.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

all eukaryotic cell have mitochondria : )