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bonds and mixtures
| Question | Answer |
|---|---|
| physical change is a ___________. | A change in substance that does NOT produce a new substance. |
| Ionic is __________. | oxidation number |
| Mixture is _____________. | Two or more elements physically combined |
| A Compound is ____________. | 2 or more elements chemically combined |
| A chemical change is ____________. | Change that produces A new substance with a new and different substance. |
| Atomic mass is ________________. | Protons + Neutrons |
| Valence electrons are | Number of electrons in the outer shell |
| How many electrons fit in the first energy level. | Two |
| How many electrons will fit into the second energy level | eight |
| positively charged particles are ____. | Protons |
| Neutral charged particle is _________. | Neutron |
| Negatively charges particles are. | Electrons |
| A charged particle is ________. | Ion |
| Oxidation number tells what | tells the charge an ion has. |
| the force of attraction between opposite charged particles | ionic bond |
| Melting of ice is a ________________. | physical change. |
| An substance that cannot be separated into a simple substance | Element |
| Neutral = what | Protons = Electrons the total amount of neutrons |
| Family has its electrons shell tuled | Family 18 noble gases. |
| Atomic # | # of protons |
| Ability to hammer into a thine sheet of metal | Malleable |
| Molded into wire | Ductile |
| Has two molecules | Diatomic number |
| the smallest part of of a substance that still has all of the properties of that substance. | Molecule |
| the force of attraction between atoms they share electrons. | covalent bond. |
| Bonding and Repeating three D pattern | Crystallatace |
| Atomic number equals the number of | Protons or electrons |
| Atomic mass equals the number of? | Protons + Neutrons |
| 2 ways to draw an electron location is. | Bohr and Lewis structure |
| only shows valence electrons | Lewis structure |
| 1 electron per side then add more if needed.What is the rule called | Hunts rule |
| If an atom looses electrons what is it | (+) |
| If an atom gains an electron what does it do. | (-) |
| A chemical bond is an attractive _______ that holds atoms together. | force |
| Chemical bonding is the process of atoms combining to form new _________. | Substances |
| Matter tends to exists in it ________ energy level. | lowest |
| An _____ bond is a bond in which one atoms donates electrons to another atom. | ionic |
| When the number of protons equals the number of electrons an atom has a ____charge. | Neutral |
| Ions are atoms with a positive or negative ________. | charge |
| ________is the process of removing electrons from atoms to form ions. | Ionization |
| Electron _______ is the tendency of an atom to gain electrons when for bonds. | Affinity |
| A bind in which atoms share electrons is called a ________bonds. | In a _________ bond many electrons are shared by many atoms. |
| An arrangement of ions bonded in a repeating three-dimensional pattern ia a _____________. | Crystallattice |
| A positive particle in the nucleus that attracts electrons is a _______. | Proton |
| A unifying explanation for a board range of hypothesis and observations that have been supported by testing is called a _____. | theory |
| the force of attraction that holds two atoms together is called a(n) | Chemical bond |
| An electron in the outermost energy level is called a ____. | valence electron |
| The force of attraction between oppositely charged ions is a(n)_______. | Ionic bonds |
| The ___________is a chart that displays all elements by atomic number, and can be used to determine the number of valence electrons for some elements. | periodic table |
| A ______is and element composed of molecules consisting of two atoms of that element. | diatomic number |
| the joining of atoms to form new substances is called _______. | Chemical bond |
| the force of attraction between the nuclei of atoms and the shared electrons is called a(n)_______. | Covalent compound |
| A _______ is a neutral group of atoms held together by covalent bonds> | Molecule |
| The force of attraction between a positively charged metal ion and the electrons in a metal is called a(n)_. | Metallic bonds |
| A(n) ___is a charged particle that forms when one or more valence electrons are transferred from one atom to another. | Ion |
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flossy176
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