Research Chemistry H Unit 2

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Last updated 12:29 AM on 9/21/26
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9 Terms

1
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Atomic number

The number of protons.

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Atomic radius

Distance from the nucleus to the outer wavelength.

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Ionization energy

Energy required to take an electron.

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Electronegativity

Likelihood to attract an electron to itself.Wh

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Who organized periodic table according to atomic number?

Henry Moseley

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Who organized periodic table according to mass?

Dmitri Mendeleev

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Where are the electrons in the modern model of the atom?

Electrons exist in orbitals surrounding the nucleus, occupying specific energy levels.

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What shape is S orbital?

The S orbital is spherical in shape, with a uniform distribution of electron density around the nucleus.

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What shape is P orbitals in the y,x, and z axes?

Figure eight shape.