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"Unos" is a form of "un", an indefinite article which is often translated as "a". "Algunos" is a form of "algunos", an adjective which is often translated as "some". Learn more about the difference between "unos" and "algunos" below.
un(
oon
)An indefinite article is a word that indicates that a noun is not specific (e.g., a girl).
1. (singular)
b. an (before vowel sound)
Tienen una vieja cámara que todavía funciona.They have an old camera which is still working.
algunos(
ahl
-
goo
-
nohs
)An adjective is a word that describes a noun (e.g., the big dog).
A pronoun is a word that stands in for a noun (e.g., she).
c. some people (plural)
A word or phrase that is plural (e.g., los libros).
Algunos simplemente no aprecian lo bonita que es la naturaleza en esta área.Some people just don't appreciate appreciate how beautiful nature is in this area.