Structure of the Atom (4)

Chemistry

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Structure of the Atom (4)

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Electron arrangement in shell of atomic structure (4)

The maximum number of electrons in the first three shells for elements with proton numbers 1 to 20 is: - First shell: 2 electrons - Second shell: 8 electrons - Third shell: 8 electrons

Electron arrangement in shell of atomic structure (4)

The third shell can be filled with a maximum of 18 electrons for elements with proton number exceeding 20

The valence shell

Is the outermost shell of an atom

The outermost shell filled with electrons

Is the valence shell

The electron arrangement in the valence shell (outermost shell)

Electrons in the valence shell are known as valence electrons

Electrons in the valence shell

Are known as valence electrons

The chemical properties of an element

Depend on the number of valence electrons of the atom

Chemical properties of elements with the same number of valence electrons

Have similar chemical properties

The electron arrangement

Shows the nucleus and electron arrangement of an atom

The atomic structure

Shows the number of protons and neutrons in the nucleus and electron arrangement of an atom

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