Electron Configuration Ions

Which elements usually form cations?

• non-metals

• metals

• any elements

• noble gases

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Anions are _______ that form ____________ ions and __________ electrons.

• nonmetals, positive, lose
• nonmetals, negative, gain
• metals, positive, gain
• metals, positive, lose

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the charge of an atom that has gained one electron?

• -1
• -2
• +1
• +2

The element Ca will form a cation. What would be the noble gas that this cation would have the same electron configuration as ?

• Ne

• Ar

• He

• Xe

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NGSS.HS-PS1-1

When iodine forms an iodide ion, into which orbital would the electron be going?

• 5s

• 4s

• 5p

• 3d

• It wont gain an electron, it would lose one.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which electron configuration belongs to a Chloride (Cl^-) ion?

• 1s² 2s² 2p⁶ 3s² 3p⁵

• 1s² 2s² 2p⁶ 3s² 3p⁶

• 1s² 2s² 2p⁶ 3s² 3p⁷

• 1s² 2s² 2p⁶ 3p⁷

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What electron configuration matches an oxygen ion?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵
• 1s²2s²2p⁴
• 1s²2s²2p⁶
• 1s²2s²2p⁶3s²3p⁶4s²3d¹

Tags

NGSS.HS-PS1-1

An aluminium ion would have which electron configuration?

• 1s² 2s² 2p⁶ 3s²

• 1s² 2s² 2p⁶ 3s² 3p¹

• 1s² 2s² 2p⁶ 3s² 3p⁶

• 1s² 2s² 2p⁶

Tags

NGSS.HS-PS1-1