In the quantum mechanical model, each allowed ____ has a precisely known energy, but the location of the electron

Chemistry

1 answer:

rusak2 [61]3 years ago

5 0

Answer:

Orbital

Explanation:

In Bohr's model, the planet model, it was thought that electrons were orbiting a nucleus just as planets are orbiting the sun. Over time, this model was proved to be inconsistent with the further findings, especially with the fact that electrons exhibited wave properties.

This lead to defining orbitals in terms of quantum mechanics. An orbital is defined as a space in which the probability of finding an electron is 95 %. Each allowed orbital has a precisely known energy, this is why we can calculate the energy needed to promote an electron to a higher orbital, as we know the difference in energies between the orbitals.

You might be interested in

To name the compound written as CuCl2, you would write:

vovangra [49]

Answer: option C. Copper (II) chloride

Explanation:

To name CuCl2, we need to know the oxidation state of Cu in the compound as chlorine always have oxidation on —1 in all its compound. The oxidation state of Cu can be calculated as follows:

Cu + 2Cl = 0 (since the compound has no charge)

Cl = —1

Cu + 2(—1) = 0

Cu —2 = 0

Collect like terms

Cu = 0 +2

Cu = +2

Therefore, the oxidation state of Cu in CuCl2 is +2.

The name of the compound will be copper(ii) chloride, since cupper has oxidation state +2 in the compound.

4 0

3 years ago

Complete combustion of 9.00 g of a hydrocarbon produced 28.9 g of co2 and 9.87 g of h2o. what is the empirical formula for the h

AVprozaik [17]

DnsigshsjeshsinVshzivfbtofns

8 0

3 years ago

The modern periodic table is arranged in order of increasing. True or Fase

Inga [223]

Answer:

The modern periodic table is arranged on order of increasing atomic number.

Explanation:

Modern periodic law states that the position of an element in the periodic table is a function of its atomic number.Atomic number is the number of electon(s) in a neutral atom and it determines the number of electon in the outermost shell of an atom called Group of an atom and also atomic determines the number of electonic shells called Period

this is opposed to the old periodic table in which elements were arranged based on their mass number

5 0

3 years ago

If an increase in temperature accompanies a reaction, what occurred?

son4ous [18]

I believe the correct response would be A. Energy being absorbed, as temperature increase must for instance occur for the reaction to occur, this increase in temperature for the reacting substances indicates energy being absorbed as the reaction proceeds.

3 0

3 years ago

Read 2 more answers

How many sulfur atoms are present in 25.6 g of Al2(S2O3)3

IgorC [24]

Given the mass of $Al_{2}(S_{2}O_{3})_{3}$ =25.6 g