| A | B |
|---|
| An f orbital can hold ___ electrons | 14 |
| A p orbital can hold __ electrons | 6 |
| Transition metals have partially filled ___ orbitals | d |
| What periodic group is Ne in? | noble gases |
| What periodic group is Na in? | alkali metals |
| What periodic group is O in? | nonmetals |
| What periodic group is Si in? | metalloids |
| Magnesium has __ electrons | 12 |
| Potassium has ___ protons | 19 (same as the # of electrons) |
| Bromine has __ neutrons | 45 |
| Do liquids take the shape of their container? | Yes |
| Do solids take the shape of their container | Of course not |
| Do liquids take the volume fo their container? | No- they have a constant/definite volume |
| A bond formed when one atom gives up electrons and one takes them | ionic bond |
| A bond formed when 2 atoms share electrons | covalent |
| The most reactive element in column/group 1 is | Fr |
| The least reactive element in column/group 2 is | Be |
| The largest atom in row/period 4 is | K |
| The element in row/period 4 with the lowest electronegativity is | K |
| The element in row/period 4 with the highest ionization energy is | Kr |
| Atoms with the same # of protons and different # of neutrons are called | isotopes |
| Atoms with the same # of protons and different # of electrons are called | ions |
| The state of matter with the tightest-packed particles | solid |
| The state of matter with the loosest-packed particles | gas (note: they are also moving the fastest) |
| If an isotope has a 1/2 life of 20 min. What portion will be left after 40 min? | 1/4 |
| Is Magnesium an element or a compound? | element |
| Is NaCl an element or a compound? | compound |
| Thomson discovered the | electron |
| Rutherford discovered the | nucleus |
| The charge on the Ca ion would be | +2 |
| How many valence electrons does P have? | 5 |
| How many valence electrons does Cl have? | 7 |
| The charge on the Al ion would be | +3 |
| If you combine Ba and S, the formula for the compound formed is | BaS |
| If you combine Na and S, the formula for the compound formed is | Na2S |
| The electron configuration for Cs ends in | 6s1 |
| All of the elements in a column have the same number of | valence electrons, or electrons in their outer shell |
| Elements in the same row of the periodic table have the same number of | energy levels containing electrons |
| To stop gamma particles you must | put several feet of concrete or several cm of lead between you and the source |
| The radiation particles with 2 neutrons, 2 protons, and 2 electrons | alpha particle (He-4) |
| The lightest subatomic particle we discussed in class | electron (proton and neutron are MUCH heavier) |
| If you put an aerosol can (constant volume) in a fire, what would happen? | it would explode (increase in pressure) |
| If you took a balloon down below sea level where the pressure is very high, what would happen (temp is constant) | It would shrink (decrease in volume) |
| If you took a 2L bottle from San Jose up to Tahoe (constant pressure, decrease in temp) what would happen? | It would suck in (decrease volume) |
| If you pump up your tires in San Jose and then drive to Death Valley (constant volume, increase temp), what would happen? | they would get harder, increase pressure |
| If Pu-244 absorbed an alpha particle, what would it become? | Cm-248 |
| Is eating a Twinkie a physical or chemical change? | chemical |
| Is evaporating alcohol a physical or chemical change? | physical |
| Particles in the nucleus of an atom | neutrons and protons |
| What is the most abundant isotope of K? | K-39 |
| A gas with an initial pressure of 1atm at 25oC, will have a pressure of ___ at 100oC | 1.25atm |
| A gas with an initial volume of 20L at 300K will have a volume of 10L at ___K | 150K |
| If you are given P1, V1, and P2, what formula do you use to solve for V2 of a gas? | P1V1=P2V2 |
| If you are given P1, V1, T1 and P2, T2, what formula do you use to solve for V2 of a gas? | P1V1/T1=P2V2/T2 |
