Periodic Table Trends

Front

What is the Periodic Table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

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NGSS.HS-PS1-1

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Front

What are Periods in the Periodic Table?

Back

Horizontal rows in the Periodic Table that indicate the number of energy levels in the atoms.

Front

What are Groups in the Periodic Table?

Back

Vertical columns in the Periodic Table that group elements with similar chemical properties and the same number of valence electrons.

Front

What is Electronegativity?

Back

A measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is Atomic Radius?

Back

The distance from the nucleus of an atom to the outermost shell of electrons.

Front

What trend occurs in Atomic Radius as you move down a group?

Back

Atomic radius increases due to the addition of energy levels.

Front

What trend occurs in Electronegativity as you move across a period?

Back

Electronegativity increases as you move from left to right across a period.

Front

What is a Valence Electron?

Back

An electron in the outermost shell of an atom that can participate in forming chemical bonds.

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NGSS.HS-PS1-1

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Front

What is the significance of a full valence shell?

Back

Atoms with a full valence shell are generally more stable and less reactive.

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NGSS.HS-PS1-1

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Front

What are Alkali Metals?

Back

Elements in Group 1 of the Periodic Table, known for being highly reactive and having one valence electron.

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