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
Ahat [919]
3 years ago
12

In the alpha decay of Francium-221, what daughter element is produced?

Chemistry
2 answers:
aleksley [76]3 years ago
8 0
<span>Astatine-217 is the daughter element produced by the alpha decay of Francium-221.</span>
hichkok12 [17]3 years ago
4 0

<u>Answer:</u> The daughter element produced will be _{85}^{217}\textrm{At}

<u>Explanation:</u>

Alpha decay is defined as the process in which a heavier nuclei decays into lighter nuclei while producing alpha particle. The alpha particle released carries a mass of 4 units and a charge of +2 units.

The mass number of the element produced is reduced by 4 units and the atomic number of the element produced is reduced by 2 units.

The chemical equation representing the alpha decay of francium-221 follows:

_{87}^{221}\textrm{Fr}\rightarrow _{85}^{217}\textrm{At}+_2^4\alpha

Hence, the daughter element produced will be _{85}^{217}\textrm{At}

You might be interested in
Which statement best explains the difference between polar and nonpolar covalent bonds?(1 point)
miv72 [106K]

Answer:

Answer is 4

Explanation:

Polar covalent bonding is a type of chemical bond where a pair of electrons is unequally shared between two atoms. ... If the electronegativity of two atoms is basically the same, a nonpolar covalent bond will form, and if the electronegativity is slightly different, a polar covalent bond will form.

6 0
2 years ago
Read 2 more answers
Which statement about the density of warm water is most likely correct?
Damm [24]
Density is a property of a material which describes the mass of a material per unit volume. Density is said to be slightly dependent on temperature. We look at the density of water at different temperatures:
<span>
100 </span>°C: 958.4 kg/m^360 °C: 983.2 kg/m^320 <span>°C</span>: 998.2 kg/m^3

Therefore, warm water has a lower density than water in colder temperature.
3 0
3 years ago
How many valence electrons does Nitrogen have?​
irinina [24]

Answer:

5 valence electrons

Nitrogen has a total of 5 valence electrons

Explanation:

6 0
2 years ago
What causes the sugar to dissolve in water?
vaieri [72.5K]

Answer:

Sugar dissolves in water because energy is given off when the slighty polar sucrose molecules form intermoleeular bonds with the polar water molecules.

Explanation:

3 0
2 years ago
Read 2 more answers
Concentrated nitric acid used in laboratory work is 68% nitric acid by mass in aqueous solution. What should be the molarity of
dsp73
The first thing we need to do here is to recognize the unit of molarity and the units of the given percentage of nitric acid.

Molarity is mol HNO3 / L of solution. This is our aim

The given percentage is 0.68 g HNO3/ g solution

multiplying this with density to convert g solution into mL solution and dividing with the molecular weight of HNO3 (63 g/mol) to convert g HNO3 to mol. Therefore we obtain

0.016 mol/ mL or 16.23 mol/ L (M)

6 0
3 years ago
Other questions:
  • A voltaic electrochemical cell consists of a copper electrode in a Cu2SO4(aq) solution, and a palladium electrode in a PdSO4(aq)
    13·1 answer
  • A molecule contains 18 atoms and undergoes a physical change. How does the physical change affect the total number of atoms of e
    8·2 answers
  • HELP<br> FREE BRAINLIEST
    9·2 answers
  • A 64.4-g sample of potassium chloride was added to 200.0 g of water at 20 degrees C. Is the solution saturated, unsaturated, or
    8·1 answer
  • The complement protein cascade is the same for the classical pathway, alternative pathway, and lectin pathway after the point in
    15·1 answer
  • Friction depends on the types of surfaces involved and how hard the surfaces push together.
    11·2 answers
  • In a eukaryotic cell, in which structure are proteins made?
    6·2 answers
  • What energy is a quarterback’s arm before throwing a pass
    14·2 answers
  • Is an element with 6 elecrons, 6 protons and 6 neutroms an atom, ion or isotope​
    9·2 answers
  • What is the name of this compound?<br> N2O5
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!