 | Term | Definition |
| |
What are the noble gases? |
group 0; all stable atoms |
| |
What is valence? |
the number of electrons at the outermost energy level |
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What is covalent bonding? |
sharing of electrons between atoms |
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Where do covalent bonds usually exist? |
between non metals |
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What kinds of inorganic compounds are there? |
acids, bases, and salts |
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What are the characteristics acids? |
sour taste, corrosive in aqueous solutions |
| |
What do acids dissociate into? |
H+ ions and a metal; usually occur with ionic compounds |
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What do solutions with low pH have? |
a high H+ ion concentration |
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What is neutralization? |
reaction between an acid and a base in forming salts |
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What happens to litmus paper if the solution is an acid? |
it turns from blue to red |
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What happens to litmus paper if the solution is a base? |
it turns from red to blue |
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What are the characteristics of bases? |
taste bitter, feels slippery, in aqueous solutions bases form/dissociate in OH (hydroxide ions) |
| |
pH's of bases are? |
7.1-14 |
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What are salt like? |
taste salty, when placed in water, they usually dissolve easily, highly reactive in water |
| |
What are some subatomic particles that are smaller than neutrons than protons? |
nucleons and quarks |
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What equipment is used to discover quarks and nucleons? |
particle accelerators |
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What is the name of the area around the nucleus in which the electrons are found |
the orbital |
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What is a neutral ion? |
an atom with a number of electrons equal to the atomic number |
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What is electrovalence? |
something that has given up its electrons and became an ion |
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Where are negative ions normally found on the periodic table? |
the right side |
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Where are positively charged ion normally found on the periodic table? |
the left side |
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What is the electron number rule? |
2-8-8 rule |
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What creates phase changes in matter? |
physical forces |
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What builds and breaks bonds? |
chemical forces |
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What are chemical forces caused by? |
other compounds or molecules that act on substances |
| |
Explain more on physical forces? |
cannot break down compounds |
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