« previous next »

Author Question: The atomic nucleus contains A) yogurt. B) protons only. C) neutrons and electrons. D) ... (Read 52 times)

erika

  • Hero Member
  • *****
  • Posts: 522
on: Jul 29, 2018
The atomic nucleus contains
 
  A) yogurt.
  B) protons only.
  C) neutrons and electrons.
  D) protons and neutrons.
  E) protons and electrons.

Question 2

At Chernobyl, one of the harmful radioactive isotopes was 131I, a beta emitter with a halflife of 8 days. The mass number of the nucleus that remains after this isotope decays is
 
  A) 132. B) 129. C) 131. D) 127. E) 130.


mjenn52

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Reed-Sternberg cells: Bilobed nucleus coupled with the prominent nucleoli gives this cell the ... Reed-Sternberg cells: Bilobed nucleus coupled with the prominent nucleoli gives this cell the ...
Spoon vanilla yogurt over canned crushed pineapple and sliced bananas for a tropical treat Spoon vanilla yogurt over canned crushed pineapple and sliced bananas for a tropical treat
Atomic Bonding Atomic Bonding
Nucleus Nucleus
He element M forms the chloride MCl4 containing 75.0% Cl by mass. What is the atomic weight of ... He element M forms the chloride MCl4 containing 75.0% Cl by mass. What is the atomic weight of ...
Meiosis I One diploid nucleus to two haploid nuclei Meiosis I One diploid nucleus to two haploid nuclei
Video: Immune responses Animation

For a complete list of videos, visit our video library