what is a photoelectric?explain the terms ground state and excited state with the help of labelled diagram

Chemistry

1 answer:

brilliants [131]3 years ago

5 0

Answer: Photoelectric is characterized by or involving the emission of electrons from a surface by the action of light.

Photoelectric effect is the emission of electrons when a radiation of frequency higher than the threshold frequency falls on the surface of an element. The substance which undergoes photoelectric effect is called as photoelectric.

Ground state is the state representing the lowest energy state.

Excited state is the state which represents a high energy state.

An electron in ground state absorbs energy to move to the excited state.

You might be interested in

Chlorine (Cl) forms a salt when it is combined with a metal. This element belongs in _____.

andriy [413]

Chlorine (Cl) forms a salt when it is combined with a metal. This element belongs in <span>halogens.

</span>

3 0

3 years ago

Please help with 2 chem questions thank you!

xeze [42]

The correct answers are A and C.

8 0

3 years ago

Read 2 more answers

The molecular formula of a compound is C7H14O7. what is the empirical formula

nata0808 [166]

Empirical formula is the simplest way the molecular formula can be wrote so here 7 goes into all of these so it would be CH2O

6 0

2 years ago

If you hold a backpack in your hand, the force of gravity pulls it downward. What force keeps it from falling to the ground?

Deffense [45]

Answer:

The force of the gases pushes downward at the same time that the gases push the rocket upwards. 1.

Explanation:

7 0

3 years ago

A biochemical engineer isolates a bacterial gene fragment and dissolves a 10.0-mg sample in enough water to make 30.0 mL of solu

Novay_Z [31]

The molar mass of the gene fragment is 19182 g/mol.

What is osmotic pressure ?

Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane. It is also defined as the measure of the tendency of a solution to take in a pure solvent by osmosis. Potential osmotic pressure is the maximum osmotic pressure that could develop in a solution if it were separated from its pure solvent by a semipermeable membrane.

We employ the osmotic pressure equation to determine the solute's concentration, which is:

π = iMRT

Using the values in the equation above, we obtain: 19182 g/mol.

To learn more about gene fragment click on the link below:

brainly.com/question/22426204

#SPJ4

7 0

1 year ago