beastboyy beastboyy

21-06-2019
Chemistry

contestada

if a neutral atom of beryllium has 4 protons and 5 neutrons, what is the mass number of the atom?

Respuesta :

victorbakora victorbakora

22-06-2019

Answer:

9

Explanation:

mass number =protons+neutrons

Answer Link

Otras preguntas

Albert has a fair spinner with 6 sides.they are labelled red, red, blue, green, red blue.Choose the word that describes the likelihood that the spinner will lan

Math help!!!!!!!!!!!!!!!!!

Match the vocabulary with the appropriate definition Origin Quadrant 111 (-; +) Quadrant IV (5) Quadrant (+,-) Y Axis Left to right (horizontal) Quadrant 11 Up

y-4 = -2(-3+3) What is y?

Which is the simplified form of p Superscript 0? p 1/p 0 1

I have 25 mins to finish pls hlep me and i give you free brainest thing

Despite government regulations, human activities are impacting our ocean ecosystems. Precipitation deposits of mercury as well as run-off and disposal of wastes

Simplify the following- -2+2*n*m

he first step in writing is to _____. draft organize rewrite proofread

PLZ HELP ME I NEED HELP ASAPPPPPP