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Musya8 [376]
2 years ago
11

The Essential part of Bohr’s Model is

Chemistry
1 answer:
IrinaVladis [17]2 years ago
4 0

Answer:The model states that electrons in atoms move in circular orbits around a central nucleus and can only orbit stably in certain fixed circular orbits at a discrete set of distances from the nucleus. These orbits are associated with definite energies and are also called energy shells or energy levels.

bohrs model and other models are really hard to understand but i hope this will help you!

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Show work: Convert 4.21g of K3PO4to atoms
Aloiza [94]
1.1943571. The molar mass of K3PO4 is 212.27. After using stochieometry, you get your answer.
8 0
2 years ago
K-40 is a radioactive isotope of potassium that undergoes beta decay. What is the product of this decay
Aleks [24]

Answer:

⁴⁰₂₀Ca + ⁰₋₁e

Explanation:

Beta decay:

Beta radiations are result from the beta decay in which electron is ejected. The neutron inside of the nucleus converted into the proton an thus emit the electron which is called β particle.

Properties of beta radiations:

The mass of beta particle is smaller than the alpha particles.

They can travel in air in few meter distance.

These radiations can penetrate into the human skin.

The sheet of aluminium is used to block the beta radiation

⁴⁰₁₉K → ⁴⁰₂₀Ca + ⁰₋₁e

The beta radiations are emitted in this reaction. The one electron is ejected and neutron is converted into proton.

5 0
3 years ago
The shielding of electrons gives rise to an effective nuclear charge, Zeff, which explains why boron is larger than oxygen. Esti
Paul [167]

Answer:

Option B. +3 and +6

Explanation:

<em>Zeff</em> = <em>z - s</em>

where <em>z</em> is the atomic number, <em>s</em> is the number of shielding(non-valence) electrons

For Boron, electronic configuration is 1s²2s³.

z = 5, s = 2

Zeff = 5 - 2 = +3

For Oxygen, electronic configuration is 1s²2s²2p⁴

z = 8, s = 2

Zeff = 8 - 2 = +6

3 0
2 years ago
What is the mass of 2.3 moles of aluminum (Al)?
tangare [24]
2.3 mols of Al*26.98 molar mass of Al=62.054g
3 0
3 years ago
PLS HELP ASAP I WILL GOVE BRAINLYEST
Radda [10]

Answer:

4 genetically different daughter cells

Explanation:

in image

5 0
2 years ago
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