When the electron of a hydrogen atom moves into a higher energy orbit, what is the state of the atom?

1 answer:

4 0

Answer is: excited state.
In excited state, hydrogen has higher energy than in the ground state (state with lowest energy). Hydrogen atom has one electron in the lowest possible orbit (1s), when atom absorbs energy, the electron move into an excited state (quantum numbers greater than the minimum possible). Electron lifetime in excited state is short.

You might be interested in

Consider the interaction of two hydrogen ls atomic orbitals of the same phase. Which statements below is an incorrest descriptio

Andreyy89

Answer:

B) The molecular orbital formed is lower in energy than a hydrogen 1s atomic orbital.

Explanation:

When two atoms of hydrogen come close to each other , there is formation of molecular orbital . Due to overlap of 1 s orbital of one and 1 s orbital of another atom , two molecular orbitals are formed . One of these molecular orbital has energy less than 1 s atomic orbital . It is called 1 s sigma bonding molecular orbital . The other molecular orbital has energy more than 1 s atomic orbital . It is called antibonding molecular orbital . Two electrons occupy bonding sigma molecular orbital .

So , the statement that "the molecular orbital formed is lower in energy than a hydrogen 1s atomic orbital " is wrong .

4 0

3 years ago

Find the energy required to melt the copper once it's reached the melting point.

belka [17]

The answer has to depend on the mass of the copper that you're trying to melt.

But there is a formula which you can calculate the energy required if you have the information of the mass. This formula requires the value called specific latent heat of fusion, which is the energy required to melt or freeze a specific mass of copper without changing its temperature but change its state.
$E = m l_{f}$
E is the total energy required, m is the mass, and lv is the specific latent heat of fusion of copper.

Usually, in questions, lv is given. But we can also look it up online which is around 205kJ kg^-1
this means, to melt or freeze a copper, we need to work the mass multiplied by 205kJ in order to calculate its total energy needed or released.

8 0

3 years ago

What are the three main radioactive elements

DIA [1.3K]

Three main radioactive elements are:

Uranium

Thorium

Radium

6 0

3 years ago

Atomic structure ? proton, neutron,electron? atom vs ion ? mass number ?

Sever21 [200]

Answer:

atomic structure - The nucleus is at the center of an atom, where most of the charge and mass are concentrated

protons - a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.

neutrons - a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

electrons - a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

atom vs. ion - an atom is the basic unit of a chemical element, and an ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons. See also cation, anion.

Mass number - total number of protons, and neutrons in an atom.

Explanation:

i hope this is what you were looking for.

6 0

3 years ago

GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect nor

SOVA2 [1]

Answer:

The minimum concentration of acetaminophen that can be detected by new= 10μg/mL

Volume of blood sample=2ml

Minimum mass of acetaminophen that can be detected by automated system= 10×2= 20μg= 0.020mg

6 0

3 years ago