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Chemistry

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Daren Crona

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Cards in this guide (12)
What is the photoelectric effect

Apexvs.

Electrons are knocked off atoms, causing electricity to flow.

What is chemical potential energy

It is another form of potential stored in food, batteries, and fuel.

Which of the following is the best example of an open system

an anthill

How did Thomson help our understanding of the atom

He discovered that the atom contained smaller particles called electrons.

What did Rutherford discover that Thomson did not understand

That most of an atom's mass was packed in a central nucleus

What did John Dalton publish

An early theory describing properties of atoms

How did quantum mechanics change your understanding of atoms

In quantum mechanics, electrons exist in a cloud-shaped area outside the nucleus.

I found the concepts mind-blowing and it took me a couple of weeks to get comfortable with it.

What law states that energy is never created or destroyed

The law of conservation of energy

What does adding a neutron to an atoms nucleus do to the atoms mass

we can not add neutron

How did quantum mechanics change our understanding of atoms

Quantum mechanics explained principles like superposition of wave-particle duality of mater. It shaped a world where the classical laws of physics were merely a waste. It exposed to us a world of particles, that matter was made of many groups of particles each accomplishing a particular task just like our organs.

With the help of quantum mechanics we were able to get a 3 dimensional idea of the atom. It was able to explain the screening effect and the stark effect. It was also able to construct exact shape of orbitals and explain the formation of various types of compounds( A theory called hybridization and VSEPR and MOT came in handy thanks to quantum mechanics). It also explained the idea that atoms were composed of a lot more particles and helped predict their states nature and characteristics.

What was the plum-pudding atomic model

a description of electrons scattered inside the atom

Burning wood in a fireplace is an example of what kind of energy conversion

Chemical potential energy converting to heat energy- apex

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