Compared to the mass and the penetrating power of an alpha particle, a beta particle has(1) less mass and greater penetrating power(2) less mass and less penetrating power
(3) more mass and greater penetrating power
(4) more mass and less penetrating power
Answers
Answer is (1) - less mass and greater penetrating power.
Alpha particle is a ₂⁴He nucleus while beta particles are electrons. Hence, the mass of alpha particle is greater than the mass of beta particle. But, the penetrating power is higher in beta particle than alpha particle. Alpha particles can be blocked by few papers but beta particles can go through those papers.
Answer: A beta particle has less mass and greater penetrating power.
Explanation:
Penetrating power is the power with which a particle travels or pass through a substance.
Since, it is known that mass of an alpha particle () is more than the mass of a beta particle (
). So, a particle that holds less mass can move easily from one place to another.
Therefore, beta particle can move faster as it has only one electron as compared to 2 protons of an alpha particle. Hence, interaction of beta particles is less with the atoms or materials through which it passes.
Therefore, we can conclude that compared to the mass and the penetrating power of an alpha particle, a beta particle has less mass and greater penetrating power.
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The answer to this question is 19
Answers
Answer:
5w2
Explanation:
2 continents have the most obvious fit of the coastlines.
subject science
Answers
Two continents have the most obvious fit of the coastlines are the east coast of South America and the west coast of Africa.
Further explanation
According to the examination of a world map it reveals a striking match between the shapes of the east coast of South America and the west coast of Africa. Attached the map which shows the west coast of Africa in 1842 and also the map of the east coast of South America. According to the picture of the west coast of Africa in 1842, we can see Sierra Leone and Freetown, where the West India Regiments arrived and departed from.
Two continents have the most obvious fit of the coastlines are the east coast of South America and the west coast of Africa, because the east coast of South America and the west coast of Africa seem to fit together like pieces of a jigsaw puzzle.
Wegener discovered that their rock layers are fit just as it clearly. All the landmasses used to be one great landmass called Pangaea. Due to plate tectonics, fire movements in the mantle of the earth, the continents are slowly through millions of years, spread farther apart.
Learn more
- Learn more about Matching Coastlines brainly.com/question/6285861
Answer details
Grade: 9
Subject: chemistry
Chapter: coastlines
Keywords: coastlines
B) Carbon dioxide
C) water
Answers
↓ ↓
1 mole 1 mole
molar mass :
CaCO₃ = 100.0 g/mol CaCl₂ = 111 g/mol
100 g CaCO₃ ------------- 111 g caCl₂
3.00 g CaCO₃ --------------- ?
3.00 * 111 / 100 =
333 / 100 = 3.33 g of CaCl₂
________________________________________
b) molar mass CO₂ = 44.0 g/mol
100 g CaCO₃ ---------- 44.0 g CO₂
3.00 g CaCO3 ------------- ?
3.00 * 44 / 100 =
132 / 100 = 1.32 g of CO2
____________________________________
c) molar mass H₂O = 18.0 /mol
100 g CaCO3 ------- 18.0 g
3.00 g CaCO3 ------- ?
3.00 * 18.0 / 100 =
54 / 100 = 0.54 g of H₂O
___________________________________
hope this helps!
oxygen
water vapor
Answers
Other planets have an atmosphere, but Earth's is unique because it has large amounts of oxygen.
Answers
Answer: Option (d) is the correct answer.
Explanation:
A test or experiment in which only one variable is changed at a time in order to verify the result is known as a controlled experiment.
That is only independent variable need to be adjusted with respect to the dependent variable.
Thus, we can conclude that the action to test a piece of treated iron and a piece of untreated iron under the same conditions would be most important to perform in a controlled experiment in the given situation.