The hybrid orbital set used by the central atom in h2co is ________. the hybrid orbital set used by the central atom in h2co is
________. sp sp2 sp3 sp3d sp3d2
1 answer:
The Lewis structure for H₂CO is shown in the attached picture. The central atom is the carbon. However, I'm not sure which bond you're referring to. There can be two answers. The two C-H bonds are sp³ hybridized because it is a single bond. The C=O bond is sp² hybridized because it is a double bond.
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The kinetic energy of the emitted electrons of cesium when it is exposed to UV rays of frequency is
Further Explanation:
Photoelectric effect:
When light is made to fall on any substance, electrons are emitted from it. This is known as the photoelectric effect and the emitted electrons are called photoelectrons. The electrons are emitted because of the transference of energy from light to the electrons.
Cesium is a member of the alkali metal group so it is highly reactive and shows photoelectric effect to the maximum extent. It can remove its electron so easily because of its atomic size. Due to large atomic size of cesium, its outermost electrons are held very less tightly to the nucleus and therefore removed easily.
According to the Planck-Einstein equation, the energy is proportional to the frequency and is expressed as follows:
......(1)
Here,
is the energy.
is the Plank’s constant.
is the frequency.
The frequency of UV rays is or
The value of Planck’s constant is .
Substitute these values in equation (1)
But when electrons are ejected out from the surface of the substance, all of its energy is considered as kinetic energy.
So the kinetic energy of the electrons is .
Learn more:
1. Statement about subatomic particle: brainly.com/question/3176193
2. The energy of a photon in light: brainly.com/question/7590814
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Structure of the atom
Keywords: kinetic energy, frequency, energy, photoelectric effect, Planck's constant, light, electrons, photoelectrons, proportional, transference, reactive, cesium.