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Science Chemical Bon

QuestionAnswer
What are the three types of bonds? Covalent, ionic, and metallic
Covalent bonds can be either __________ or _________? polar bonds and non-polar bonds
What is a non-polar bond? An unequal sharing of electrons
What is a polar bond? an equal share of electrons
Atoms bond by gaining, losing, or sharing __________? electrons
What is an ion? a negative or positive share of an electron
What is an ionic bond? forms between a metal and a non-metal by the transfer of electrons
What are some characteristics for ionic bonds? - high melting points - form crystal latis structure
Are valence electrons shared or transferred in an ionic bond? transferred
What is the relationship between protons and electrons in a neutral atom? same # of protons and electrons
Explain why atoms that lose electrons form positive ions? When an atom loses electrons it now has more protons than electrons
Metals have few valence electrons and form _________ ions? positive
Why do metals in groups 1 & 2 react very easily? They want to have a full outer energy level
How are negative ions formed? When an element gains electrons the # of electrons more than the # of protons
What type of suffix is associated with negative ions? -ide
Atoms of no-metals lose or gain electrons ? gain
What do halogens release when they gain an electron? energy
Is an ionic compound charged? Why or why not? overall net charge equals zero
What is a covalent bond? A bond between non-metals
What are some characteristics of covalent bonds? - low melting point - form diatomic non-metals
How do two non-metals bond? sharing electrons
Which bond shares electrons? covalent
What bond transfers electrons? ionic
What bond has prefix? covalent
Created by: ajchoi