Question | Answer |
How do you find the overall charge of an atom? | number of protons minus the number of electrons. more protons is a positive charge, more electrons is a negative charge, equal is nuetral |
How do you find the number of valence electrons? | know the group |
Which way do groups move on the periodic table? | groups are horizontal increasing left to right |
Which way do periods move on the periodic table? | period are vertical and go down |
What kind of boundary moves towards each other? | convergent |
Which subatomic particle has a negative charge? | electrons |
What kind of boundary moves apart? | divergent |
What is energy with movement called? | kinetic energy |
Which subatomic particle has a positive charge | protons |
How does the Sun generate energy? | nuclear fusion |
Which subatomic particle has a neutral charge? | neutrons |
Which subatomic particles is similar in size? | protons and neutrons |
What is the proper way to light a bunsen burner? | make sure air vent is closed, make sure needle valve is closed, turn on gas, turn needle half turn, striker, adjust height, let air in, |
How do you find atomic mass in an atom? | protons plus neutrons |
What kind of boundary slides past each other? | transform |
Which subatomic particle determines what the element is? | protons |
Where are protons and neutrons located? | nucleus |
Natural gas mixes with __________ to create a blue flame in the bunsen burner | oxygen |
What is the unit for energy? | joules |
What subatomic particles are in the nucleus of the atom? | protons and neutrons |
What is an ion? | an atom or molecule with a net electric charge due to the loss or gain of one or more electrons. |
Why are blue colored flames best on a bunsen burner? | they are clean, hotter, and safer |
What is the volume of a liquid measure in? | ml |
How can I turn and orange flame into a blue flame on a burner? | open the air hole |
Where are the most reactive metals on the periodic table, and what are they called? | alkali metals |
How many valence electrons do the most reactive types of elements have? | 1 or 7 |
How many valence electrons do alkali metals have? Alkaline earth? | 1 alkali metals and 2 for alkaline earth |
How much larger is a centimeter than a millimeter? | ten times larger |
What is matter? | objects that take up space and have a mass |
What is a broad explanation that is widely accepted because it is backed up by a great deal of evidence? | Theory |
What is the equation for density? | mass/volume |
What is the equation for speed? | distance/time |
What kind of boundary is the San Andreas fault on? | strike-slip, transform |
Two nonmetals bonded together are what kind of compound? | Covalent compound |
If an atom has one valence electron, what would its charge be when it becomes an ion? | -1 |
Where are the metalloids located? | stair step between nonmetal and metal |
What is the process of how the Earth was formed called? | accreation |
What are covalent bonds? | share electrons, made of non-metals only |
Know how to draw a proper Bohr Model | |
Know how to draw a proper Lewis Diagram | |
What is an inverse relationship? | one one variable increases the other decreases |
What is a direct relationship? | one increase other increase, one decreases other decreases |
What kind of object does not let electrons to flow through an object? | insulator |
Charge transfer without direct contact is called? | induction |
Collisions in a container generate more _______________. | Energy, heat, friction |
Waves are a propagation of _________________ | sound |
What is the building block of all matter? | atom |
What is an independent variable? | variable being changed |
What is an dependent variable? | responds to independent |
How are scientific theories different from the everyday use of theory? | backed up by evidence |
What are constants? | the variable kept the same |
What is a subducting plate? | the plate that goes under other plates |
Break in a rock along a rock mass | fault |
Unit of measurement for force? | newtons |
What is the first thing you should do when you get into the lab area? | read directions |
What is attracted to a positively charged object? | electrons |
Where is new ocean crust made? | mid-ocean ridges |
What kind of variable is changed in the experiment? | independent |
What kind of variable is kept the same throughout the experiment? | constant |
What kind of variable responds to the independent variable in the experiment? | dependent variable |
Which group is the alkali metals? | 1 |
Which group is the alkaline earth metals? | 2 |
Which group is the most reactive group of nonmetals? | group 17 |
Where are the metalloids located? | in stair step between nonmetals and metals |
What is an ion? | a charged atom |
What is an isotope? | an element that contains equal numbers of protons but different numbers of neutrons |
Know how to read and use the periodic table. | |
Know how to find atomic mass | protons plus neutrons |
Know how to complete metric line conversion | |
Be able to think through some lab rules. | |
Be able to read a compound an know how many of each element is in the compound | two or more elements that chemically combine like NaCl. however many capital letters in each element determines how many in a compound |
Be able to know what the charge of an ion would be after it lost or gained electrons. | Lost + charge
Gainted -charge |
charge | protons-electrons |