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
Afina-wow [57]
3 years ago
11

The mercury-201 nuclide radioactively decays by electron capture. Write a balanced nuclear chemical equation that describes this

process.
Chemistry
1 answer:
ICE Princess25 [194]3 years ago
8 0

Answer:

Explanation:

Electron capture is a form of beta decay in which the nucleus of a radionuclide captures an electron. In the case of mercury-201, the equation below illustrates that

²⁰¹₈₀Hg + ⁰₋₁e   ⇒  ²⁰¹₇₉Au

As can be seen above, the electron capture reduces the atomic number by one unit leading to the production of a new radioisotope (because of the change in atomic number).

You might be interested in
a chemical company claims that they are able to produce a certain product thermodynamically unfavored process. Explain how this
KonstantinChe [14]
Thermodynamically favored process are those processes that do not require any assistance from outside the system e.g water boils at 25 degrees. Thermodynamically unfavored processes require assistance from outside to induce the required change for example water doesn't freeze at 15 degrees and therefore for that to happen several factors in the system have to be modified to achieve this. Therefore, there is a possibility of companies to produce product by using thermodynamically unfavored process by inducing changes in the system to achieve desired change or modification.
8 0
3 years ago
What is the hybridization of the central atom in each of the following? 1. Beryllium chloride 2. Nitrogen dioxide 3. Carbon tetr
Lina20 [59]

Answer :

(1) The hybridization of central atom beryllium in BeCl_2  is, sp

(2) The hybridization of central atom nitrogen in NO_2  is, sp^2

(3) The hybridization of central atom carbon in CCl_4  is, sp^3

(4) The hybridization of central atom xenon in XeF_4  is, sp^3d^2

Explanation :

Formula used  :

\text{Number of electron pair}=\frac{1}{2}[V+N-C+A]

where,

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

Now we have to determine the hybridization of the following molecules.

(1) The given molecule is, BeCl_2

\text{Number of electrons}=\frac{1}{2}\times [2+2]=2

The number of electron pair are 2 that means the hybridization will be sp and the electronic geometry of the molecule will be linear.

(2) The given molecule is, NO_2

\text{Number of electrons}=\frac{1}{2}\times [4]=2

If the sum of the number of sigma bonds, lone pair of electrons and odd electrons present is equal to three then the hybridization will be, sp^2.

In nitrogen dioxide, there are two sigma bonds and one lone electron pair. So, the hybridization will be, sp^2.

(3) The given molecule is, CCl_4

\text{Number of electrons}=\frac{1}{2}\times [4+4]=4

The number of electron pair are 4 that means the hybridization will be sp^3 and the electronic geometry of the molecule will be tetrahedral.

(4) The given molecule is, XeF_4

\text{Number of electrons}=\frac{1}{2}\times [8+4]=6

Bond pair electrons = 4

Lone pair electrons = 6 - 4 = 2

The number of electrons are 6 that means the hybridization will be sp^3d^2 and the electronic geometry of the molecule will be octahedral.

But as there are four atoms around the central xenon atom, the fifth and sixth position will be occupied by lone pair of electrons. The repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be square planar.

3 0
3 years ago
Phosphorus has an atomic mass of 31 and an atomic number of 15, so the number of neutrons must be _______________.
Nikitich [7]
Remember this:

atomic mass= atomic number + number of neutrons 

The atomic number (same thing as number of protons) in this case is 15. The atomic mass is 31. 

So, we subtract 15 from 31 to find the number of neutrons.

31-15=16 

16 neutrons!!!
6 0
3 years ago
What is the relationship between the strength of the magnetic field and the deflection of the galvanometer needle?
Karo-lina-s [1.5K]

Answer:

Similarly, if magnet is held stationary and the coil is moved away and towards the magnet, the galvanometer shows deflection in similar manner. It is also seen that, the faster the change in the magnetic field, the greater will be the induced emf or voltage in the coil.

please mark me brilliance

3 0
1 year ago
Determine the number of moles in 254 molecules of bromine.
Natali5045456 [20]

Answer:

4.22 × 10 ⁻²² mol

Explanation:

Given data:

Number of molecules of bromine = 254 molecules

Number of moles = ?

Solution:

1 mole = 6.02 × 10 ²³ molecules

254 molecules × 1  mol / 6.02 × 10 ²³ molecules

42.2 × 10 ⁻²³ mol

4.22 × 10 ⁻²² mol

3 0
3 years ago
Other questions:
  • Draw all constitutional isomers with the molecular formula c4h9br, and then arrange them in order of: increasing reactivity towa
    7·1 answer
  • Temperature of the water to the nearest degree:<br> °C
    15·2 answers
  • Which of these best describes why water molecule is polar?
    9·1 answer
  • Differentiate between metals and noble gases.
    14·2 answers
  • How many moles of oxygen will occupy a volume of 25 l at 1.2 atm and 25 c?
    8·2 answers
  • Please answer the “(fill-in)” ones thank you :)
    5·1 answer
  • How does the balanced chemical equation show the conservation of matter in this chemical reaction?
    8·1 answer
  • How do volcanos such as ojos del salado form?
    5·1 answer
  • What vale is represented by the symbol Mr
    9·1 answer
  • Is glycine mono functional? <br>​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!