1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iVinArrow [24]
3 years ago
6

Which of the following selections completes the following nuclear reaction?

Physics
1 answer:
Monica [59]3 years ago
3 0

Answer:

n (a neutron)

Explanation:

For a chemical element:

- The lower subscript indicates the atomic number (the number of protons)

- The upper subscript indicates the mass number (the sum of protons and neutrons in the nucleus)

In the reaction described in the problem, we see that a gamma photon hits a nucleus of Calcium-40, which has

Z = 20 (20 protons)

A = 40 (40 protons+neutrons)

Which means that the number of neutrons is n =  A - Z = 40 - 20 = 20

After the reaction, we have a nucleus of Calcium-39, which has

Z = 20 (20 protons)

A = 39 (39 protons+neutrons)

Which means that the number of neutrons is n =  A - Z = 40 - 39 = 19

So, the nucleus has lost 1 neutron, which is the particle missing in the reaction.

You might be interested in
A planet's temperature depends on its distance from the Sun as well as the strength of its greenhouse effect. Let's remove the e
pishuonlain [190]

Answer:

Smallest Effect

Mars

Earth

Venus

Largest Effect

5 0
3 years ago
What is the Genetic Modification Process?<br><br> Brainlyist for the best answer
Dovator [93]

Answer:

Production of GMOs is a multistage process which can be summarized as follows:

1. identification of the gene interest;

2. isolation of the gene of interest;

3. amplifying the gene to produce many copies;

4. associating the gene with an appropriate promoter and poly A sequence and insertion into plasmids;

5. multiplying the plasmid in bacteria and recovering the cloned construct for injection;

6. transference of the construct into the recipient tissue, usually fertilized eggs;

7. integration of gene into recipient genome;

8. expression of gene in recipient genome; and

9. inheritance of gene through further generations.

6 0
2 years ago
Read 2 more answers
Does water transmit light
liq [111]
While the answer is that it does, it transmits light VERY poorly. Most of the light bounces off it and the rest is refracted into the ocean. This is why you can't see much that is far away from you in the ocean unlike if you're just on land.
3 0
3 years ago
When solid surfaces slide over each other, the kind of friction that occurs is called_____ friction.
expeople1 [14]

Answer:

Sliding Friction

Explanation:

The term sliding friction refers to the resistance created by two objects sliding against each other. This can also be called kinetic friction. Sliding friction is intended to stop an object from moving.

7 0
3 years ago
Read 2 more answers
when mary took a cold thick-walled glass out of the refrigerator and placed it in boiling water, the glass cracked. Explain why
goldfiish [28.3K]
The outer surface of the glass expands faster than the inside surface since glass is a fairly good thermal insulator. The outer surface tries to expand without the inner surface doing so at the same time. This is the secret of Pyrex glass. It is more conductive to heat and the inner and outer surface expand (and contract) at the same time.

4 0
3 years ago
Other questions:
  • Two persons are applying forces on two opposite sides of a moving cart. The cart still moves with the same speed in the same dir
    15·1 answer
  • What are the two main classifications of matter??
    9·1 answer
  • FIRST ANSWER IS BRAINIEST TAKE YOUR TIME I NEED RIGHT ANSWERS FIRST ANSWER IS BRAINIEST ANSWER TAKE YOUR TIME NEED RIGHT ANSWER
    14·2 answers
  • Suppose a body has a force of 10 pounds acting on it to the right, 25 pounds acting on it −135° from the horizontal, and 5 pound
    13·1 answer
  • True or False? In the quark era, it was so hot that matter and
    9·1 answer
  • Potassium chlorate decomposes to produce 20 g of solid potassium chloride. Oxygen gas is also produced. Which best describes the
    6·1 answer
  • Hydrogen fuel cells are used on the space shuttle to provide the shuttle with all of its electrical energy. Explain why fuel cel
    6·1 answer
  • Atoms with atomic number ____ or less will not undergo fission.
    9·1 answer
  • True or false 6.02x10^23 atoms of oxygen have a mass of 16g ?
    8·1 answer
  • Match each space mission with the correct milestone.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!