Valence electrons Flashcards

1
Q

Why are atoms neutral?

A

They do not have a charge because the number of protons equals the number if electrons

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2
Q

Valence electrons

A

electrons in the outer most shell; the electrons that are involved in bending

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3
Q

How to atoms become stable?

A
  1. by being like noble gases who do not react with other elements because their valence shells are already full
  2. can gain electrons to fill a shell
  3. can lose electrons to get rid of a shell exposing a full one underneath
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4
Q

Ions

A

atoms that have a charge because they have gained or lost electrons to become stable with a full valence shell

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5
Q

Cations

A

lose electrons (+)

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6
Q

Anions

A

gains electrons (-)

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7
Q

How are valence electrons involved in the formation of cations and anions?

A

If you add or take away a certain amount of protons and neutrons it can make a stable shell, anions are with a negative charge and cations with a positive charge

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