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
Novosadov [1.4K]
3 years ago
7

What makes an atom radioactive? A.Its electrons are easily pulled away. B.Its protons and electrons repel each other. C.Its nucl

eus can easily break apart over time. D.Its neutrons are held more strongly than its protons.
Chemistry
1 answer:
docker41 [41]3 years ago
3 0
C. It's nucleus can break apart.
If it's breaking apart, it's decaying in order to become more stable. Hope that helps!
You might be interested in
How many L are in 1,500cm^3<br><img src="https://tex.z-dn.net/?f=1500%7Bcm%7D%5E%7B3%7D%20%3D%20%5C%3A%20...%20%20%5C%3A%20liter
irga5000 [103]
1.5 liters are in 1,500cm^3.
8 0
3 years ago
4. DBearded waste of Co-60 must be stored until it is no longer radioactive. Cobalt-60
Bingel [31]

464 g radioisotope was present when the sample was put in storage

<h3>Further explanation</h3>

Given

Sample waste of Co-60 = 14.5 g

26.5 years in storage

Required

Initial sample

Solution

General formulas used in decay:  

\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{t/t\frac{1}{2} }}}

t = duration of decay  

t 1/2 = half-life  

N₀ = the number of initial radioactive atoms  

Nt = the number of radioactive atoms left after decaying during T time  

Half-life of Co-60 = 5.3 years

Input the value :

\tt 14.5=No.\dfrac{1}{2}^{26.5/5.3}\\\\14.5=No.\dfrac{1}{2}^5\\\\No=\boxed{\bold{464~g}}

8 0
2 years ago
Science / which phrase describes the differences between these two liquid ?
Zina [86]

Answer:

viscosity

Explanation:

one one left is mercury and the other one is honey right?

8 0
3 years ago
1/ Which graph illustrates constant speed and velocity
Maksim231197 [3]
Velocity is said to be constant if its magnitude as well direction at any instant is remains the same. In D, if you draw a line parallel to y-axis at any time t, you can see that velocity is same. Hence, D is the correct graph.

The kinetic energy of gaseous molecules is greater than that of liquid molecules. Therefore, in gas, kinetic energy overcomes the force of attraction between molecules. In short, in gas phase, particles move at high speed and hence they have less force of attraction. In case of liquid phase, particles are close enough as a result there is much more force of attraction compared to gaseous molecules. In liquid state, kinetic energy cannot overcome force of attraction therefore, liquid molecules slow down.

Therefore, B is the correct answer.
4 0
3 years ago
Which of these best explains the formation of deep ocean currents
timurjin [86]

Answer:

if you could copy and paste the text or a picture of the options, i'd be more than happy to answer

Explanation:

:)

5 0
2 years ago
Other questions:
  • What is the empirical formula of a compound with 35.94% aluminum and 64.06% sulfur
    7·1 answer
  • Main job is to sort and package proteins and other substances in a plant cell
    11·1 answer
  • 2.4 moles of a gas in a balloon has a pressure of 4.0 atm at 373K. What is the volume of the gas?
    14·1 answer
  • Most arson fires are produced through what
    12·2 answers
  • PLEASE HELP ME OUT. I AM REALLY LOST AND I JUST NEED THIS LAST QUESTION I WILL BE GRATEFUL AND WILL GIVE BRANLIEST!
    7·1 answer
  • The energy associated with a current is called____________
    8·1 answer
  • I just want to know the answer
    10·2 answers
  • The orbital diagram above is from the element ?
    8·1 answer
  • Choose the BEST answer from the four options A, B, C, or D: Due to which property of LPG are we asked to close the valve of the
    6·1 answer
  • Migration is _______. a. the movement of organisms from a native location to a foreign location b. the movement of organisms fro
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!