ionic and metallic bonds g 9 worksheet

The positive ions tend to _____________ electrons.

• lose

• gain

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

The negative ions tend to _____________ electrons.

• lose

• gain

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why are sodium and chlorine attracted to each other?

• they have opposite charges

• they both have negative charges

• they both have positive charges

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NGSS.MS-PS2-5

Valence electrons are found

• in the innermost energy level of an atom

• in the middle energy levels of an atom

• in the outermost energy levels of an atom

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does hydrogen have?

• 1

• 2

• 3

• 4

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NGSS.MS-PS1-1

When an atom loses an electron, it becomes a

• positive ion

• negative ion

• neutral ion

• neutral atom

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why do all bonds form?

• so the number of protons equals the number of electrons

• so an atom can become unstable

• to fill the outermost energy level

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ionic bonds are between...

• Metal and Non-metal
• Non-metal and Non-metal
• Metal and Metal

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NGSS.HS-PS1-2

How are ionic bonds formed?

• Transfer of electrons
• Sharing of electrons

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NGSS.HS-PS1-2

Why do elements bond?

• To be friends
• To create a new element
• To become stable

Tags

NGSS.HS-PS1-2