Matter
Matter II
States of Matter
Atoms
The Periodic Table
100
This is the term used to classify Hydrogen.
What is an element?
100
This is the term used to describe a substance which can be represented by a chemical formula and can not be broken down into a simpler substance.
What is a pure substance?
100
This is what happens to the distance between atoms when a substance absorbs energy.
What is increase?
100
This is what is found in the center of atoms.
What is a nucleus?
100
These are elements which have full outer orbitals and are very stable.
What are noble gases?
200
This is the term used to classify Hydrogen gas, H2.
What is a molecule?
200
This is the type of change which happens when sand and water are mixed.
What is physical change?
200
This is what happens to the speed of mercury atoms when mercury freezes.
What is decreases?
200
These two substances are found in the nucleus of an atom.
What are protons and neutrons?
200
This is a substance which is very poor at transferring heat and electricity.
What is an insulator?
300
This is the term used to classify water, H2O.
What is a compound?
300
This is the term used to describe the change which occurs when paper is burned.
What is chemical change?
300
This is what happens to the pressure of gas when it's temperature is increased.
What is increased?
300
This is the negative sub-particle found in atoms.
What is an electron?
300
This is the term used describe elements which have properties similar to metals and nonmetals.
What is metalloids, semi-conductors, or semi-metals.
400
This is the electron dot diagram for Chlorine.
What is Cl with 7 dots around it representing chlorine's number of valence electrons, found from its location on the periodic table.
400
Ice melting into water is an example of a physical change but can also be called this _______________.
What is a phase change?
400
This is what happens to the density of a liquid when its temperature increases.
What is decreases?
400
This is what is represented by the mass number of an element.
What is neutrons plus protons?
400
Elements in group 1 are named this ______________.
What is Alkali Metals?
500
This is the formula used to determine the density of an object.
What is density = mass / volume?
500
This is the volume of a substance with a density of 7.8 g/cm3 and a mass of 39 grams.
What is 5 cm3?
500
This is what happens to water when the atmospheric pressure is decreased.
What is lowers to boiling point?
500
This is the number of neutrons found in an argon atom which has a mass of 40 g/mol. and an atomic number of 18.
What is 22 neutrons?
500
Other than the noble gases this is the only family of non-metals found on the periodic table.
What are Halogens?
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