« previous next »

Author Question: Beryllium's atomic mass is 9 and its atomic number is 4. How many neutrons are f (Read 1004 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?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Chromosome number is halved Chromosome number is halved
Hiroshima lies in ruins after it was destroyed by an atomic bomb. Hiroshima lies in ruins after it was destroyed by an atomic bomb.
You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ... You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ...
The mole fraction of oxygen in dry air near sea level is 0.20948, where the molar mass of ... The mole fraction of oxygen in dry air near sea level is 0.20948, where the molar mass of ...
Relationship between the number of amino acid substitutions Relationship between the number of amino acid substitutions
Meiosis Halves the Chromosome Number Meiosis Halves the Chromosome Number
Video: Types of antimicrobial substances (interferons & complement protein)

For a complete list of videos, visit our video library