Use the HR diagram below to answer the question. what can be concluded about the initial mass of a blue main sequence star compared to a red main sequence star?
A. Blue main sequence stars had a greater initial mass
B. Blue main sequence stars have the same initial mass has red main sequence stars
C. Red main sequence stars had a greater initial mass
D. initial mass comparisons cannot be made between blue and red main sequence stars

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.