« previous next »

Author Question: Beryllium's atomic mass is 9 and its atomic number is 4. How many neutrons are f (Read 1076 times)

Mr. Wonderful

  • Hero Member
  • *****
  • Posts: 866
on: Apr 23, 2014
Beryllium's atomic mass is 9 and its atomic number is 4. How many neutrons are found in a beryllium atom?
A) 9
B) 13
C) 4
D) 5


Millan

  • Sr. Member
  • ****
  • Posts: 368
Reply #1 on: May 9, 2014
This is for essentials biology, right? the answer is D. Bye for now.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Mr. Wonderful

  • Hero Member
  • *****
  • Posts: 866
Reply #2 on: May 9, 2014
Thank you, you were right :D


« previous next »
 

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

A Coronal Mass Ejection A Coronal Mass Ejection
The number of research articles published on the topic of religious practices and spirituality have ... The number of research articles published on the topic of religious practices and spirituality have ...
What mass of sulfur hexafluoride, SF6, has the same number of fluorine atoms as 25.0 g of ... What mass of sulfur hexafluoride, SF6, has the same number of fluorine atoms as 25.0 g of ...
Calculate the number of grams of solute in 500.0 mL of 0.169 M KOH. Calculate the number of grams of solute in 500.0 mL of 0.169 M KOH.
What is the total number of valence electrons in a silicate ion, SiO32-? What is the total number of valence electrons in a silicate ion, SiO32-?
Gravitational Force Due to a Distribution of Mass Problem 1 Gravitational Force Due to a Distribution of Mass Problem 1
Video: Biological organic compounds

For a complete list of videos, visit our video library