Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chemistry Final
Chemistry final Study
| Term | Definition |
|---|---|
| Atom | The smallest piece of matter that has the chemical property of that element |
| Half Life | The amount of time it takes half the atoms present to decay. |
| Intensive Property | Size of the sample does not matter. |
| Extensive Property | Size of the sample does matter. |
| Neutron Charge | none |
| Charge= | protons-electrons |
| Protons | + |
| Electrons | _ |
| Isotopes | Atoms of the same element with a different number of nuetrons |
| Father Of the Periodic Table | Demetri Mendeleev |
| Group 1 of Periodic Table is Called? | Akali Metals |
| Group 2 of periodic table is called? | Alkali earth metals |
| Group 3-12 of Periodic Table is called? | Transition Metals |
| Group 17 of Periodic Table is called? | Halogens |
| Group 18 of periodic table is called? | Noble gases |
| Top row of F on the periodic fable is called? | Lanthanides |
| Bottom row of F on the periodic table is called? | Actinides |
| Where are Valence Electrons | Outermost shell |
| Ionization energy | The energy needed to remove the outermost electron |
| Anions | Negatively charged, gain electrons |
| Cations | Positively charged lose electrons |
| Radioactive Atom | The nucleus of the atom spontaneously breaks down. |
| Alpha Particle | Slow moving, 2 protons 2 neutrons |
| Beta Particle | Faster, looks like an electron |
| Gamma | Fastest, energy |
| Beta Decay | Neutron breaks down to become a proton and an electron, rapidly moving electron as product, the beta particle. |
| Fission | when a heavy nucleus breaks into two smaller ones |
| Fusion | when two smaller nuclei bind into one larger one |
| What is the definition of chain reaction? | When neutrons continue to hit other unstable nuclei they continue to break apart. |
| Draw Back of Fission | Chemical waste |
| Draw back of fusion | lack of effciency |
| what is the equation Einstien used related to energy and mass | E=mc² |
| Definition of nuclear binding energy | the energy that is released when two nuclei join or break apart |
| definition of decay series | steps for radioactive element to become stable |
| compounds and elements are also known as? | pure substances |
| a homogenous mixture is also know as? | a solution |
| What are the 3 states of matter | solid, liquid, gas |
| define compound | two or more elements bonded together |
| define mixture | separate stuff together but not bonded |
| What are the two types of separation? | Physical and chemical |
| how do you find volume? | Length x Width x Height=volume |
| define dependent variable | what is being measured |
| define independent variable | what is being changed |
| how should a hypothesis be written | If then because statement |
| what is the control variable | its the variable that is always kept the same |
| What are the common steps of the scientific method | hypothesis, question, conclusion, experiment |
| In oxidation numbers -1 and -2 are electrons gained or lost? | gained |
| in oxidation numbers +1 and +2 are electrons lost or gained | lost |
| Define daughter nucleus | what is left after decay |
| what number allows us to know what element we are dealing with? | atomic number |
| what is the equation to find atomic number | M-N=AN |
| What is the equation for atomic mass | P+N=M |
| what is the equation to find charge | E-P=charge |
| What are the trends of atomic radius on the p. table | Going up atoms get smaller, going down atoms get larger because you add shells |
| what are the trends of ionization on the p. table | going down atoms larger atoms are easier to remove, going down across atoms are harder to remove |
| what numbers do you need to know to balance nuclear equations? | atomic and mass numbers |
| what are the six phase changes? | Freezing, melting, condensation, boiling, sublimation, deposistion |
| What causes the plateaus on the heating curve | phases changes because energy is moving the atoms instead of heating them. |
| why is science loopy and not linear | because there is no set order of steps. |
| define nuclear decay | lose an alpha or beta particle to form a more stable atom |
| Where does energy in a nuclear reaction come from | binding energy |
| How many significant figures does 6.2 have | 2 |
| How many significant figures does 5.00 have | 1 |
| how many sig figs does 4.36789 | 6 |
Created by:
27jwoolf
Popular Chemistry sets