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
nlexa [21]
3 years ago
11

Which nuclei is not radioactive? A. Am-241 B. Mg-24 C. Pu-241 D. U-238

Physics
1 answer:
Helen [10]3 years ago
6 0

Hello!

Which nuclei is NOT radioactive?

A) Am-241 B) Mg-24 C) Pu-241 D) U-238

Solving:

It is noteworthy that chemical elements located on the periodic table in the lanthanide and actinide groups are radioactive.  

Am-241 (americium) belongs to the group of actinides and is a heavy and radioactive metal.  

Mg-24 (magnesium) is an essential element for the body, mainly for the nervous system, in addition to synthesizing proteins and serves for hormonal control, belongs to the group of alkaline earth metals and is a non-radioactive nucleus.

Pu-241 (plutonium) is an element that is isotope of fission by plutonium, belongs to the group of actinides and is a heavy and radioactive metal.  

U-238 (uranium) is an element that is isotope of non-fission uranium, belongs to the group of actinides and is a heavy and radioactive metal.

Answer:

B) Mg-24

_______________________

I Hope this helps, greetings ... Dexteright02! =)

You might be interested in
Why do we use microwaves to communicate berween earth and satellites
nlexa [21]
It’s frequency is high and microwaves can pass through the atmosphere of the Earth.
7 0
3 years ago
Read 2 more answers
The brakes exert a 1,951 N force on a car weighing 18,985 N and moving at 12 m/s. The car finally stops. How long (in seconds) d
nata0808 [166]

Answer:20,000

Explanation:

7 0
3 years ago
Why is it important for engineers to design bumper cars safely
rosijanka [135]

Answer:

Cars have bumpers designed to protect the body of the car from minor damage during low-speed collisions. ... They will use the engineering design process to design and build bumpers to protect the main parts of their car from damage, and use their knowledge of Newton's third law to explain what they observe.

Explanation:

3 0
3 years ago
Read 2 more answers
If an object is moving eastward and slowing down, then the direction of its acceleration is
Alchen [17]
C. Eastward. Acceleration is the change in speed so it can be a positive (speeding up) or negative (slowing down) acceleration
4 0
2 years ago
Can anyone help me with questions a and c​
Ganezh [65]

Answer:

a)

n=sin i/sin r

n= -0.305/-0.428

n=0.713

b)

sin c=1/n

sin c=1/0.713

sin c= 1.403

c=sin⁻¹(1.403)

c= 40.842°

Explanation:

i hope it will be helpful

plzzz mark as brainliest

5 0
2 years ago
Other questions:
  • The milky way galaxy is most likely an example of which type of galaxy?
    5·2 answers
  • Need help with these
    11·2 answers
  • A girl jumps forward off of her skateboard. The skateboard weighs much less than the girl. [Friction in the wheels and between t
    8·1 answer
  • Which gas is a greenhouse gas?<br><br> nitrogen<br> oxygen<br> carbon dioxide<br> hydrogen
    14·2 answers
  • Please help fast science homework
    8·1 answer
  • A steel ball of mass 0.1 kg falls from a height of 1.8metres
    9·1 answer
  • Help please I don't understand this
    5·1 answer
  • For a projectile launched from the vertically from the surface the earth with initial velocity v0, the velocity of the projectil
    12·1 answer
  • A 500-kg, light-weight helicopter ascends from the ground with an acceleration of 2.00 m/s2. over a 5.00-s interval, what is (a)
    15·1 answer
  • Use the formula from Newtons second law, namely Fnet=∆t=∆P that the Net force exerted on the object is equal to the product of t
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!