Ionic and Covalent Bonds

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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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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How do covalent bonds form?

• By donating and receiving valence electrons between atoms.

• Scientists still aren't sure.

• Opposite slight charges attract each atom in the compound.

• Sharing valence electrons between atoms

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What two types of atoms make a covalent bond?

• 2 Nonmetals

• 1 Metal and 1 Nonmetal

• 2 Metals

• 2 Noble Gases

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When an atom loses an electron, it becomes a

• positive ion

• negative ion

• neutral ion

• neutral atom

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Ionic bonds are between...

• Metal and Non-metal

• Non-metal and Non-metal

• Metal and Metal

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Atoms are most stable when their outer shell is complete.

• true

• false

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How are covalent bonds formed?

• Sharing of electrons

• Transfer of electrons

How are ionic bonds formed?

• Transfer of electrons

• Sharing of electrons

Why do elements bond?

• To be friends

• To create a new element

• To become stable

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