funwitfayy funwitfayy
  • 03-09-2020
  • Chemistry
contestada


A atom has 20 electrons, 21 neutrons, and 20 protons. What is the atomic mass of the atom?

Respuesta :

poudelbinda8
poudelbinda8 poudelbinda8
  • 12-09-2020

name= calcium

atomic mass= 40.078 atomic mass unit

no of protons= 20

no of electrons=20

Answer Link

Otras preguntas

324,459,463 in expanded form
Please answer attached Parallel lines with Multiple transversals
why did Ukriane became a country?​
carrie took a 24-hour train ride from colorado to illinois. if she arrived in illinois at 2:45pm cst on wednesday, when she did she leave colorado.
Eight less than the product of 5 and a number is 3. Use the variable b for the unknown number.
What is 1 2/3 - (-5 2/3)? • 6 1/3 • 6 2/3 • 7 1/3 • 7 2/3
What role did Dorothea Dix play in social reforms of the early 1800s?
which two elements do all hydroxides contain?​
Employers can take a variety of approaches to deal with the shifting nature of jobs and job requirements. The ______ approach would maintain current employees,
Carl is preparing a speech on a relatively delicate topic. He wants to be sure that he does not harm his audience physically or emotionally. Thus, as he chooses