Bonding atoms

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

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What type of bond is shown in this image?

• Ionic
• Polar Covalent
• Nonpolar Covalent
• Van der Waals Force

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How many are shared in a single bond?

• 2 pairs
• 4
• 2
• 1

How many are shared in a double bond?

• 2
• 4 pairs
• 6
• 4

How are ionic bonds formed?

• When atoms share an electron
• When opposite charged atoms attract
• When one atom takes a proton
• When one atom takes a neutron

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Why do ionic bonds form?

• so the number of protons equals the number of electrons
• to fill the outermost energy level
• so an atom can become unstable

Atoms form ions in order to become this

• isotopes
• stable
• metals
• nonmetals

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How many valence electrons does oxygen have?

• 2
• 3
• 6
• 4

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How many valence electrons does hydrogen have?

• 4
• 3
• 2
• 1

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Is this image an example of covalent bonding?

• Yes
• No

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