General Review - Periodic Table and Electron Configuration

Orbital

• a region in an atom where there is a high probability of finding electrons.

• an electron that is found in the outermost shell of an atom and that determines the atom’s chemical properties.

• The energy level at which electrons orbit the nucleus of an atom

• a subdivision of electron shells

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Valence Electron

• a region in an atom where there is a high probability of finding electrons.

• an electron that is found in the outermost shell of an atom and that determines the atom’s chemical properties.

• The energy level at which electrons orbit the nucleus of an atom

• a subdivision of electron shells

Electron Shell

• a region in an atom where there is a high probability of finding electrons.

• an electron that is found in the outermost shell of an atom and that determines the atom’s chemical properties.

• The energy level at which electrons orbit the nucleus of an atom

• a subdivision of electron shells

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Electron Subshell

• a region in an atom where there is a high probability of finding electrons.

• an electron that is found in the outermost shell of an atom and that determines the atom’s chemical properties.

• The energy level at which electrons orbit the nucleus of an atom

• a subdivision of electron shells

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the maximum number of electrons that an orbital can have?

• 1 electron
• 2 electrons
• 3 electrons
• 4 electrons

How many valence electrons are represented here?

• 7
• 5
• 2
• 8

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NGSS.HS-PS1-1

How many d orbitals are there in a given sublevel?

• 1
• 3
• 5
• 7

How many p orbitals are there in a sublevel?

• 2
• 1
• 4
• 3

What is this element? 
1s²2s²2p⁶3s²3p⁶
4s²3d¹⁰4p⁶

• Argon
• Krypton
• Selenium
• Bromide

Tags

NGSS.HS-PS1-1

How many electrons can the first energy shell hold?

• 1

• 2

• 8

• 0