TheCelloAlex7376 TheCelloAlex7376

16-09-2018
Chemistry

contestada

How many neutrons does a beryllium atom with four protons and a mass number of nine?

Respuesta :

16-09-2018

neutrons=mass number-protons
=9-4=5

Answer Link

Otras preguntas

For 50 points! Can anyone help writing a poem explaining the 3rd amendment

The united states primarily became involved in ww2 due to events in which area

Your height can be represented by a function h , where the input is your age. What Does h(14) represent?

The circulatory system of organisms carries nutrients throughout that organism. Which cell structure has a similiar structure?

Explain how congress can use its oversight power

If a thread is not finished running, perhaps because it had to wait or it was preempted, it is typically restarted on the same processor that previously ran it.

Which equation could you use to solve for x in the proportion 4/5=9/x ?

Why are the states of California, Oregon, and Washington mild and rainy?

Which option for funding career education might cause you to incur extra fees on your debt? a. student loans b. military service c. merit-based scholarships d.

Which of the following statements is true? a)During active transport, a material may be moved from an area of low concentration to an area of high concentration