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Chemical Bonding
Question | Answer |
---|---|
What are valence electrons? | Electrons on the outer ring of an atom |
How many valence electrons do atoms need to be stable? | 8 (except hydrogen and helium who only need 2) |
What types of elements are involved in an ionic bond? | Metals and nonmetals |
What types of elements are involved in a covalent bond? | Only nonmetals |
Are electrons shared or transferred in an ionic bond? | Transferred |
Are electrons shared or transferred in a covalent bond? | Shared |
What type of charge do metals have once they transfer electrons? | Positive |
What type of charge do nonmetals have once they transfer electrons? | Negative |
Do opposite charges attract or repel? | Attract |
How many valence electrons do all of the alkali metals have? | 1 |
How many valence electrons do all of the alkali earth metals have? | 2 |
How many valence electrons do all of the halogens have? | 7 |
How many valence electrons do all of the noble gases have? | 8 |
In an electron transfer diagram for making ionic compound formulas, do we use arrows to show electrons moving or boxes to show electrons sharing? | Arrows |
In an electron sharing diagram for making covalent compound formulas, do we use arrows to show electrons moving or boxes to show electrons sharing? | boxes |
Molecules are compounds that use which kind of bond: ionic or covalent? | Covalent |
Would the following elements form an ionic or covalent bond: C and O | Covalent |
Would the following elements form an ionic or covalent bond: Rb and Cl | Ionic |
Would the following elements form an ionic or covalent bond: N and N | Covalent |
Would the following elements form an ionic or covalent bond: Ba and P | Ionic |
Would the following elements form an ionic or covalent bond: H and F | Covalent |
Would the following elements form an ionic or covalent bond: Fe and Br | Ionic |