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Fantom [35]
3 years ago
6

The nucleus of a radium-226 atom is unstable, which causes the nucleus to spontaneously

Chemistry
2 answers:
Verdich [7]3 years ago
6 0
The answer is (3) decay. An atom whose nucleus is unstable is said to be "radioactive," and its nucleus undergoes nuclear decay.
artcher [175]3 years ago
4 0

Answer: The nucleus of radium-226 is unstable and hence undergoes decay.

Explanation: Radium has many isotopes. One of them is _{88}^{226}\textrm{Ra} which has 88 protons and 138 neutrons. It is a radioactive isotope and undergoes decay process.

This isotope undergoes alpha - decay and produces Radon-222 isotope.

Equation for alpha - decay follows:

_{88}^{226}\textrm{Ra}\rightarrow _{86}^{222}\textrm{Rn}+_2^4\alpha

Hence, the nucleus of radium-226 undergoes decay process.

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What do animal and plant cells have in common
Pavlova-9 [17]

Answer:

both have cell membranes

Explanation:

the animal cell has small  or temporary vacuoles.

animal cell does not have chloroplast or cell wall.

6 0
3 years ago
I need help completing this table regarding standard solution.
kramer

Answer:

The answer to your question is below

Explanation:

Data

Stock solution concentration = 0.00190 M

Volume stock solution = 10 ml

Final volume = 100 ml

Standard solution concentration = ?

Absorbance of the standard solution = 0.62

Process

A) 0.00190 M it was given in the data

B) 0.62            it was given in the data

C)                  C1V1  =  C2V2

                     C2 = C1V1/V2

                     C2 = (0.00190)(10)/100

                     C2 = 0.000190 M

D)   Ratio = Absorbance/Concentration = 0.62/0.000190

                                                                = 3263.2

3 0
3 years ago
What is said to have occurred when an object experiences a frequency equal to its natural frequency?
DaniilM [7]

Answer: Resonance

Explanation:

A resonance is said to occur when an object experiences a frequency that is equal to its natural frequency.

A resonance refers to the sound that's produced by an object when the object vibrates at an identical rate as the sound waves that is coming from another object.

Therefore, the correct option is C

4 0
3 years ago
Account for the differences in the physical and chemical properties of dinitrogen and white phosphorous based on their Lewis str
Nookie1986 [14]

Answer:

a-The dinitrogeno is a mononuclear diatomic formed by two nitrogen atoms united by a covalent union instead the white phosphorus is a common allotrope of the chemical element phosphorus, nowadays it exists as molecules integrated by four muscles in a tetrahedral structure

b-In addition to its offensive capabilities, white phosphorus is also a highly efficient smoke agent, capable of rapid burning and producing instant smoke screens. For this reason, white phosphorous ammunition is common in infantry smoke grenades and grenade launchers, as well as tank, armored vehicle, cannon, and mortar ammunition.

The incandescent particles of white phosphorus produced in the initial explosion can produce deep, extensive and painful second and third degree burns. Phosphorus burns carry a higher mortality than other types of burns due to the absorption of phosphorus in the body through the areas reached, damaging internal organs such as the heart, liver or kidney.

These weapons are particularly dangerous to personnel because white phosphorus burns unless it is deprived of oxygen or until it is completely consumed, in some cases reaching the burn to the bone. In other cases, burns may be limited to areas where the skin is exposed because phosphorous particles do not completely burn through clothing. According to GlobalSecurity.org, quoted by The Guardian, "White phosphorus causes painful chemical burn damage."

Explanation:

Each chemical component presents different presentations in their orbits, and different amounts of electrons, this makes them act in different ways, some when reacting can be lethal and others not, on the other hand it is important to consider the simplicity of these molecules and the consequences they generate , and this only happens by the forces of their unions.

7 0
3 years ago
How many stars are in the constellation Andromeda?<br><br> hellllp i give brainlyst!
soldi70 [24.7K]

Answer:

51 stars it said i needed 20 characters because my answer was too short

so yeah.

3 0
3 years ago
Read 2 more answers
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