tamya12234 tamya12234

12-09-2018
Physics

contestada

An element has 4 protons, 5 neutrons, and 4 electrons. What is the atomic mass of the element? 4 5 8 9

Respuesta :

arthurpdc arthurpdc

12-09-2018

The atomic mass is equal to the sum of the number of protons and neutrons. Then, it is [tex]p+n = 4+5=9[/tex].

Hence, the answer is 9.

Answer Link

plushdna plushdna

01-03-2019

Name: Beryllium

Atomic Mass: 9.012 atomic mass units

Number of Protons: 4

Number of Neutrons: 5

Number of Electrons: 4

hope it helps

-Plushdna

Answer Link

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