Looking at the information for the isotope below, the number of protons is Select]
the number of neutrons is Select)
and the
number of electrons is Select]
which makes it al
[ Select]
Isotope
Atomic Number Mass Number of protons of neutrons of electrons Charge
42
Q
22

Supongamos que estás estudiando dos estrellas. ambas estrellas tienen la misma magnitud aparente, pero la estrella a tiene una magnitud absoluta mayor que la estrella b. ¿que puedes decir acerca de la distancia a la tierra de estas dos estrellas?

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Identify the electromagnets with poles that are reversed from the electromagnet shown above