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kari74 [83]
3 years ago
13

Difference between element and radical​

Chemistry
2 answers:
Romashka-Z-Leto [24]3 years ago
6 0

Answer:

A radical is a group of atoms behaving as a unit in a number of compounds where as an element is a species of atoms having the same number of protons in their atomic nuclei.

Explanation:

Aneli [31]3 years ago
4 0

Answer:

A radical is an atom, ion, or molecule that has unpaired electrons. An element is a substance made up of the same type of atoms. To be rather brief, a radical is an atom, while an element is made up of equal atoms.

Explanation:

Good luck, hope this helped!

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Briefly describe bohr's model postulates and its limitations.​
ch4aika [34]

<u>Answer:</u>

<u>Bohr's Model postulates-</u>

I postulate - The electrons in an atom orbit around the nucleus in definite circular paths called orbits or shells.

II Postulate - Each shell or orbit represents a specific amount of energy.

III Postulate - By emitting or absorbing energy, an electron may shift from one stationary energy orbit to another.

<u>Three main Limitations -</u>

1- It adjusts to the hydrogen atom's spectrum but not to the spectra of other atoms.

2 - In the definition of the electron as a tiny particle that spins around the atomic nucleus, the wave properties of the electron are not described.

3- Bohr is unable to understand why classical electromagnetism is inapplicable to his model. That is why, when electrons are in a stationary orbit, they do not emit electromagnetic radiation.

Explanation:

<u>About Bohr's postulates-</u>

1 - The electron spins in circling circles around the nucleus, emitting no energy. The orbital angular momentum is constant in these orbits.

Only certain radii of orbits, corresponding to certain given energy levels, are required for electrons in an atom.

2- Not every orbit is possible. However, whenever an electron is in a legal orbit, it is in a state of unique and constant energy and does not emit energy (stationary energy orbit).

<u>For example -</u> The energies allowed for electrons in the hydrogen atom are given by the following equation: The Rydberg constant for the hydrogen atom is -2.8\times10^-^1^8 in this equation, and n = quantum number will range from 1 to ∞. For each of the values of n, the electron energies of a hydrogen atom produced by the above equation are negative. As n rises, the energy becomes less negative and thus rises.

3- By emitting or absorbing energy, an electron may shift from one stationary energy orbit to another.

The energy difference between the two states would be equal to the energy released or consumed. This energy E is in the form of a photon, and it can be measured using the following formula:

    E=hv

E is the energy (absorbed or emitted) in this equation, and h is the Planck constant (its value is 6.63\times10^-^3^4 Js) and v denotes the frequency of light, which is calculated in 1/ s.

8 0
2 years ago
Help please hurry pic below
masha68 [24]

Answer:

Hi

Explanation:

5 0
2 years ago
Identify each type of bond:
zloy xaker [14]

Answer:

The type of bond between the Oxygen atom and the hydrogen is Covalent

this is because the 2 electrons are being shared by both hydrogen and oxygen

The type of bond this molecule makes as a whole is called a Hydrogen Bond

A hydrogen bond is formed because of the partial +ve and -ve charge in a molecule

The cause of the partial +ve and -ve charge is the comparatively high electronegativity of oxygen which makes the electron get attracted towards the oxygen atom while the hydrogens try to maintain the maximum distance from the lone pairs due to repulsion

Hope it helped

Kindly Mark Brainliest

6 0
3 years ago
An alcohol thermometer makes use of alcohol's changing in order to measure temperature. As the temperature goes up.
kotegsom [21]

The question is incomplete, the complete question is;

An alcohol thermometer makes use of alcohol's changing _______ in order to measure temperature. As the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

A.

mass

B.

state

C.

chemical composition

D.

density

Answer:

D.

density

Explanation:

Every kind of thermometer makes use of a change in a particular physical property of a substance as a measure of temperature. It must be a property that changes with temperature.

Density of a substance changes with temperature. Even though the mass of alcohol in glass remains constant, but its volume increases or decreases with change in temperature leading to a change in volume and consequently a change in density of the alcohol in glass. This change is used as a measure of the change in temperature.

4 0
3 years ago
What is the original source of most energy used on Earth?
ser-zykov [4K]

Answer:

the sun Solar energy

Explanation:

Energy from the sun. Solar energy is the original source of most energy on Earth. There are many ways we use energy from the Sun.

3 0
3 years ago
Read 2 more answers
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