Answer:
The mass number and the atomic number remain unchanged
Explanation:
Gamma rays are one of the rays in the electromagnetic spectrum. In fact, they have the shortest wavelength and the highest penetrating power in the electromagnetic spectrum. They are also an important component to discuss when learning about radioactivity.
They are one of the 3 main radiation emisssions alongside alpha and beta particles. While alpha and beta particles affect either the atomic or mass number or both, the gamma ray radiation does not affect any of this. They simply leave the nuclei unchanged. They only show that radiation has taken effect and most times are like an extra radiation term alongside alpha and better particles.
When a radioactive source emit gamma rays, they do so without a change in either their atomic mass and their mass number
Answer:
b. decreases
Explanation:
As the depth of the ocean increases the population of ocean creatures decreases.
At special depths organisms must be better adapted to withstand the adverse and extreme conditions of this zone.
- At depths oxygen dissolve in water is rarer.
- The pressure is very great due to the column of water above
- For organisms to thrive in these zones, they must have special adaptability that would prevent them from being destroyed in this environment.
- Therefore, organisms are rarer in this zone.
The number 4 in the 4/2He indicates the atomic mass number of helium.
Answer: Option 3
<u>Explanation:
</u>
The elements present in periodic table generally represented as 
. Here X will be the element in the periodic table, A is the atomic mass number of the element X and Z is the atomic number of the element X.
So, the number 4 is the atomic mass number of He and He-4 is the stable isotope of helium which can also be termed as alpha particle.
Mass number = number of protons + neutrons count.
Thus the number 4 denotes the Helium's atomic mass number.
Answer:
The object is moving at a constant speed.
