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
kodGreya [7K]
3 years ago
15

In beta decay, what is emitted? A. an electron B. a helium-4 atom C. a neutron D. a photon E. a radionucleus

Chemistry
2 answers:
myrzilka [38]3 years ago
4 0

Answer: A. an electron

<u>Beta particles are electrons or positrons (electrons with positive electric charge or antielectrons).</u> Beta decay is a type of radioactive decay in which a beta ray is emitted from an atomic nucleus.

<u>Beta decay occurs when, in an unstable nucleus with too many protons or too many neutrons, one of the protons or neutrons transforms into the other.</u> In beta minus decay, a neutron is broken down into a proton, an electron, and an antineutrino (the neutrino antiparticle, meaning it has an opposite charge to the neutrino). In beta decay plus, a prototype breaks down into a neutron, a positron and a neutrino.

Step2247 [10]3 years ago
4 0

Answer:

A an electron

You might be interested in
4. How many moles are in 9.12 x 1023 molecules of sugar? And I want the steps to so that I can understand better
Aleksandr-060686 [28]

Answer:

Step 1: List the known quantities and plan the problem.

Known

number of C atoms = 4.72 × 10 24

1 mole = 6.02 × 10 23 atoms

Unknown

4.72 × 10 24 = ? mol C

One conversion factor will allow us to convert from the number of C atoms to moles of C atoms.

Step 2: Calculate.

 

4.72 times 10^{24} text{atoms C} times frac{1  text{mol C}}{6.02 times 10^{23} text{atoms C}}=7.84  text{mol C}

Step 3: Think about your result.

The given number of carbon atoms was greater than Avogadro’s number, so the number of moles of C atoms is greater than 1 mole.  Since Avogadro’s number is a measured quantity with three significant figures, the result of the calculation is rounded to three significant figures.

Explanation:

the image is 4 step2 mwa

7 0
3 years ago
Which of these changes do not involve forming or breaking chemical bonds?
gregori [183]
D
Boiling and melting are both physical changes so do not involve the formation or breakage of chemical bonds.
5 0
3 years ago
Read 2 more answers
A chemist wishes to prepare a stock solution of 1.25 M KI. She will be diluting a 3.25 M KI solution in order to obtain 0.355 L
strojnjashka [21]
0.137 L of the stock solution

M1V1 = M2V2
M1 = 3.25 M
V1 = This is what we’re solving for.
M2 = 1.25 M
V2 = 0.355 L

Solve for V1 —> V1 = M2V2/M1

V1 = (1.25 M)(0.355 L) / (3.25 M) = 0.137 L
6 0
3 years ago
Object A and Object B have the same kinetic energy, but object B is moving faster. What can you infer about Object A?
rewona [7]
Pretty sure it has greater mass
5 0
3 years ago
Read 2 more answers
What do you think might be some disadvantages of solar energy?
telo118 [61]

Answer:

Cost

Explanation:

The cost of purchasing a solar system is high so it serves as a great disadvantage.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Lead has a density of 11.3 grams/cm cubed. What mass of lead will fit in a 20 cm cubed container?
    6·1 answer
  • identify each material as a compound or a mixture. Caffeine contains hydrogen, carbon, nitrogen, and oxygen atoms in a fixed rat
    13·2 answers
  • If 28.0 grams of Pb(NO3)2 react with 18.0 grams of NaI, what mass of PbI2 can be produced? Pb(NO3)2 + NaI → PbI2 + NaNO3
    15·1 answer
  • Which of the fallowing elements is the most reactive?
    15·1 answer
  • Which one will create a precipitate when mixed with a bromine ion?
    8·2 answers
  • How can u change cm to dm
    15·1 answer
  • Does a reaction occur when aqueous solutions of chromium(III) sulfate and calcium nitrate are combined
    8·1 answer
  • What is the difference between a conductor and an insulator?
    8·2 answers
  • Describe the steps, in detail, of creating a water compass. Please remember to write in complete sentences.
    5·1 answer
  • suppose it takes 27 min for 1.5 g of sugar to completely react with another reagent we added to the flask. what would the reacti
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!