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2 years ago

1) According to Bohr's model of the atom, in which orbitals do electrons have the most energy?

2 answers:

7 0

The orbitals closest to the nucleus is the orbital wih the lowest energy. This is according to the basic rules stating that the energy of the shells as its principal quantum number increases, also increases. Thus the answer in 1 is B. Valence electrons are found in the outermost electron shell, on the other hand.

FinnZ [79.3K]2 years ago

6 0

The answer is:

1) Outermost orbitals have the most energy.

The explanation:

In Bohr model we can see that the highest energy level is found in the outermost orbital , when the first orbital form and make a shell around the nucleus and its principal quantum number which has the symbol (n) is = 1

So the other orbital away from the nucleus is gradually assigned values:

n = 2

n= 3

n=4

etc

and the most stable and the lowest energy level is found in the innermost orbit.

2) valence electrons located in the outermost electrons shell.

The explanation:

when:

The number of electrons in the outermost shell of an atom gets its reactivity or tendency from it to form and make the chemical bonds with the other atoms.

This outermost shell is called the valence shell, and the electrons found in this shell are called valence electrons.

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How would an apple, potato, and onion all taste the same?

Firlakuza [10]

Answer:

If you were to plug your nose, it would block out more than 80% of taste, causing all three items to have no taste- therefore making them taste the same.

Explanation:

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2 years ago

Before entering the cyclotron, the particles are accelerated by a potential difference V. Find the speed v with which the partic

vesna_86 [32]

Answer:

Speed, $v=\sqrt{\dfrac{2qV}{m}}$

Explanation:

The device which is used to accelerate charged particles to higher energies is called a cyclotron. It is based on the principle that the particle when placed in a magnetic field will possess a magnetic force. Just because of this Lorentz force it moves in a circular path.

Let m, q and V are the mass, charge and potential difference at which the particle is accelerated.

The work done by the particles is equal to the kinetic energy stored in it such that,

$qV=\dfrac{1}{2}mv^2$

v is the speed with which the particles enter the cyclotron

So,

$v=\sqrt{\dfrac{2qV}{m}}$

So, the speed with which the particles enter the cyclotron is $v=\sqrt{\dfrac{2qV}{m}}$ . Hence, this is the required solution.

7 0

2 years ago

When an alkaline earth metal, a, reacts with a halogen, x, the formula of the covalent compund formed should be a2x?

Ierofanga [76]

Alkaline earth metal are the elements present in II group in the periodic table and are known as 'Metals' and have a charge of +2.

Alkaline earth metals - Be , Mg Ca, Sr , Ba, Ra

Halogens are present in VII A group in the periodic table and are 'Non-metals' and have a charge of -1.

Halogens - F, Cl, Br, I, At

When Alkaline earth metal (metals) combine with Halogens (non-metals) the compound formed will be ionic compound and the formula of the compound will be based on the charges of the element.

When we write the formula of the ionic compound the charges of the elements get criss crossed.

For example - Mg (Alkaline earth metal) have a charge of +2 and Cl (Halogen) have a charge of -1 and when they combine to form the formula their charges get criss crossed and we will get $Mg_{1}Cl_{2}$ or $MgCl_{2}$