Which part of the atom is responsible for chemical bonding?

• Inner/Core Electrons
• Outer/Valence Electrons
• Protons
• Neutrons

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What best describes valence electrons?

• Electrons in the inner-most shell.
• Electrons in the outer-most shell.
• Electron that became a beta particle.

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How many valence electrons do most atoms need to have a complete outer shell and be happy?

• 1
• 8
• 10
• 5

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Which two elements only need two valence electrons to be happy?

• Hydrogen and Helium
• Lithium and Neon
• Copper and Iron
• Californium and Berkelium

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How many valence electrons do elements in Group 1, the Alkali Metals, have?

• 1
• 2
• 6
• 7

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How many valence electrons do elements in Group 2, the Alkaline Earth Metals, have?

• 1
• 2
• 6
• 7

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How do ionic bonds form?

• Atoms share electrons to fill their valence shell.
• Atoms gain or lose electrons to fill their valence shell.
• Atoms donate electrons to a "sea" of electrons.

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How do covalent bonds form?

• Atoms share electrons to fill their valence shell.
• Atoms gain or lose electrons to fill their valence shell.
• Atoms donate electrons to a "sea" of electrons.

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Electronegativity ______ moving left to right on the Periodic Table.

• increases

• decreases

• stays the same

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What type of bond is illustrated in this image?

• Metallic

• Ionic

• Covalent

• James

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