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Chemical Bonding 8th
study for 8thgrade science test on Chemical Bonding
Question | Answer |
---|---|
Neutron | sub-atomic particle with no charge |
Electron | the negatively charged particles found in all atoms |
Proton | the positively charged particles |
Chemical Bond | a force of attraction that hold 2 atoms together |
Chemical BondING | the joinING of atoms to form new substances |
Ionic Bond | Bond where electrons are transferred |
Covalent Bond | Chemical bond that involves the sharing of electons |
Metallic Bond | Electrons free to move throughout metallic nuclei |
Periodic Table, describe how it's organized | Metals on the Left side, Nonmetals on the RIGHT |
How can the # of valence electrons be found? | Using the family (or group) number |
Valence Electrons | an electron of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom. |
What are some characteristics of Ionic Bonds? | metal and nonmetal, Ions form a neutral compound, Crystal lattice structure, hard brittle solids-high melting points, btwn. oppositely charged ions |
What are some characteristics of Covalent Bonds? | Nonmetals ONLY, sharing of e- , LOW melting point and LOW boiling point, Illustrated using e-dot diagrams, |