보어의 원자 모형 Bohrs Atomic Model

Bohr’s Atomic Model

In 1913, Niels Bohr proposed his quantized shell model of the atom to explain how electrons can have stable orbits around the nucleus. The atom only has certain energy levels, they are determined by fixed circular orbits of electrons around…
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원자의 크기 Scale of Atom

Scale of Atom

Zoom In Zoom Out Each click of the screen zooms in or out by 10 times. Structure of atoms This universe is composed of about 100 kinds of atoms. The size of a typical atom is about 10-10m. An atom…
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방사성 물질의 반감기 Half Life Period of a Radioactive Substance

Half Life Period of a Radioactive Substance

Reset Radioactive Decay Radioactive decay The radioactive material can collapses their own nucleus structure. At the same time, nucleus emit some small particles or energy to the outside. The emitted particles and radioactive energy can cause damage to the human…
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여러 원소들의 불꽃 반응 Flame Test

Flame Test

When heat is applied to the atoms that make up the material, some electrons have high energy levels and then fall to the lower levels. Some electrons emit as much energy as the energy level difference. By measuring the emitted…
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원자의 전자 배치 Electron Configuration of an Atom

Electron Configuration of an Atom

Electron Configuration is the arrangement of electrons in an atom. Electrons fill the lowest energy level first. The atomic numbers tells how far electrons are from the nucleus. And then, what other rules are there?

물질파와 드브로이의 원자 모형 Matter Wave and de Broglie's Atomic Model

Matter Wave and de Broglie’s Atomic Model

Light has both particle and wave properties at the same time. Likewise, de Broglie (France, 1892 – 1987) thought that such things as electrons which had so far been considered to be particles might possess wave nature as well (1932).…
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빛의 양자화 Quantum of Light

Quantum of Light

This simulation assumes a situation where all of the energy emitted from the candle is emitted as light of a certain wavelength. The power of the candle is assumed to be 50W. The emitted light wave is for the sake…
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