paramamark9538 paramamark9538

25-08-2022
Chemistry

contestada

Beryllium has an atomic number of 4. How many neutrons does the isotope beryllium-9 have?.

Respuesta :

egled1997 egled1997

25-08-2022

Answer: 5 neutrons

Explanation:

atomic number - number of protons in the nucleus

beryllium has mass number 9

mass number = number of protons + number of neutrons

9 = 4 + number of neutrons

number of neutrons = 9-4 = 5

Answer Link

Otras preguntas

each graduation on the beam of a vernier caliper is equal to

Which Airlines lounges are the best ?

Which polynomial expresses the difference of the two polynomials below? (8u7+5u5−5)−(4u7−8u5+4)

please solve all these Question 1 Find f'(x) if f(x) = In [v3x + 2 (6x - 4)] Solution < Question 2 The count model is an empirically based formula that can b

"What challenges does inadequate water have on safe and healthy living" https://brainly.com/question/32500135#:~:text=What%20challenges%20does%20inadequate%20w

(1 point) Biologists have noticed that the chirping of crickets of a certain species is related to temperature, and the relationship appears to be very nearly l

Select the possible fates of pyruvate after glycolysis. A. It can undergo an addition reaction to produce ethanol. B. It can become converted to acetylaldehyde

Given the ellipse with equation 2x²+y²=1. Find a Maclaurin series that allows you to determine the arc length of the part of this ellipse situated in the first

. making assumptions to fill in information gaps can be a dangerous practice. how can such problems be prevented?

Can someone please help I need this fast