Question

Classify the given types of matter as either baryonic (ordinary matter that contains protons and neutrons) or as nonbaryonic ("extraordinary" matter that consists of more exotic subatomic particles)
(Select B - Baryonic, N - Nonbaryonic. If the first is B and the rest N, enter
BNNNNN).

a. matter in our bodies
b. dark matter consisting of weakly interacting subatomic particles
c. dark matter consisting of Jupiter-sized planets in galactic halos
d. matter in brown dwarfs
e. matter that probably makes up the majority of dark matter in the universe

Answer 1

Answer:

a) B

b) N

c) B

d) B

e) N

Explanation:

a) The matter in our bodies is the regular matter, basically, we are made of carbon molecules and water. So it involves baryonic matter.

b) In this case, the weakly interacting subatomic particles know as (WIMPs), is the primary candidate for dark matter and this kind of particle has not yet been discovered. We are talking about the nonbaryonic matter.

c) Planets as a Jupiter are made of baryonic matter, in the specific case of Jupiter, it is approximately 75% hydrogen and 24% helium by mass and they are baryonic matter.

d) By definition, brown dwarfs are objects which have a size between a giant gaseous planet like Jupiter and a smaller star, so using the definitions above they are made of baryonic matter.

e) The majority of dark matter is made of non-baryonic matter.