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
Semenov [28]
3 years ago
15

Please Help!! How does alpha decay change the nucleus of radioactive atom.

Chemistry
1 answer:
cluponka [151]3 years ago
5 0

Answer:

When atom undergoes the alpha emission the original atom convert into the atom having mass number less than 4  and atomic number 2 less than the starting atom.

Explanation:

Alpha radiations are emitted as a result of radioactive decay. The atom emit the alpha particles consist of two proton and two neutrons. Which is also called helium nuclei. When atom undergoes the alpha emission the original atom convert into the atom having mass number less than 4  and atomic number 2 less than the starting atom.

Properties of alpha radiation:

Alpha radiations can travel in a short distance.

These radiations can not penetrate into the skin or clothes.

These radiations can be harmful for the human if these are inhaled.

These radiations can be stopped by a piece of paper.

₉₂U²³⁸   →   ₉₀Th²³⁴  + ₂He⁴  + energy

You might be interested in
Please I really really need help!!!
ira [324]

Answer:

1) 40

2) 2.25 moles

3) 17

4) 120

5) Fe₂O₃

Explanation:

Please see attached picture for full solution.

6 0
3 years ago
Read 2 more answers
How many atoms are in 5.2 moles of Na ?
Nastasia [14]

One mole of a substance is defined by Avogadro as consisting of 6.022 x 1023 atoms. This is Avogadro's number. To calculate the number of atoms in two moles of sodium, use dimensional analysis. 2.0 moles Na x 6.022⋅1023g1mol=1.20⋅1024 atoms of Na

8 0
2 years ago
CO2 + H20. What is the total number of moles of Oz required to completely
maria [59]
I think the right answer is 2.5
7 0
3 years ago
Jose’s lab instructor gives him a solution of sodium phosphate that is buffered to a pH of 4. Because of an error that he made w
RoseWind [281]
His measurements are precise since his pH values are close to each other in a way that it was repeated in all measurements. On the contrary to accuracy, it is the closeness to the actual pH value he should have achieved. Therefore, Jose's results are precise but not accurate since his value is not close to the actual value of pH 4.
3 0
3 years ago
A student balanced the chemical equation Mg + O2 →MgO by writing Mg + O2 → MgO2. Was the equation balanced correctly? Explain yo
Amanda [17]

Explanation:

Charges on both magnesium and oxygen is 2. Though opposite in sign, they have equal charges so, both of them will be cancelled by each other.

As a result, formula of magnesium oxide is MgO and not MgO_{2}.

The student write the equation as Mg + O_2 \rightarrow MgO_2, it is not correct.

Therefore, given equation will be balanced as follows.

          2Mg + O_{2} \rightarrow 2MgO

Since, number of atoms on both reactant and product side are equal. Hence, this equation is completely balanced.

7 0
3 years ago
Other questions:
  • Which of these characteristics do these elements have in common?
    6·1 answer
  • An element is a main constituent of paper, diamond and clothes etc. It forms covalent bonds with itself and other elements:- (1)
    7·2 answers
  • In the spectrophotometric analysis of benzene, the calibration curve has a slope of 195 AU/M and an intercept of 0.079 AU. If an
    10·1 answer
  • A conversion factor is a fraction that is always equal to what number
    5·1 answer
  • A sample of gas occupies 115.9 mL at -206.6°C. What volume does the sample occupy at 175.9 °C?
    8·1 answer
  • Earth has several ideal features which enable it to support life. MOST important is the
    6·2 answers
  • Atoms of elements at the top of a group on the periodic table are smaller than the atoms of elements at the bottom of the group.
    13·1 answer
  • Which statement describes the feeling interactions between frogs and insects? Select all that apply.
    6·1 answer
  • What is the concentration of each ion in a 0.525 mol/L solution of magnesium chloride?<br> mg=? cl=?
    6·1 answer
  • Why is it important to prepare for disaster? what are the things you need to prepare?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!