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Foundations of Matter (Unit 3) Study Guide!
Terms in this set (33)
number of protons
shorthand for element name
average mass of all versions of an element, measured in AMU
organization & motion of a solid
tightly packed molecules, vibrating/wiggling in place
organization & motion of a liquid
loose but close molecules, sliding over each other
organization & motion of a gas
spread out and zooming molecules
Phase Change: energy is added as a substance changes from a liquid to a gas
evaporation or boiling
Phase Change: energy is removed as a substance changes from a gas to a liquid
Phase Change: energy is added rapidly as a substance changes from a solid to a gas, skipping the liquid phase
Phase Change: energy is removed rapidly as a substance changes from a gas to a solid, skipping the liquid phase
Anything made of ATOMS, has MASS and VOLUME
how much STUFF (matter) is in an object.
how much SPACE an object takes up.
In the nucleus, you can find the: (which subatomic particles?)
protons and neutrons
Properties of Metals
Good conductor (heat/electricity)
Tiny particle that makes up everything (the basic building block of matter)
Outside the nucleus, you can find the: (which subatomic particles?)
What is the electrical charge of the subatomic particles?
Neutrons- NEUTRAL (no charge)
Metalloids have properties that are...
properties a bit like metals, and a bit like non-metals.
An element is....
a unique type of atom. (protons and properties unique)
Atomic mass, atomic number, chemical symbol, element name
information for each element that can be found on Periodic Table
unique to each element (atom); can be used to identify atom/element; number of protons
Metals location on the Periodic Table
elements found on the LEFT hand side of PT (except for hydrogen)
Non-metals location on Periodic Table
elements found on most of the right hand side of PT
Metalloids location on the Periodic Table
elements touching the staircase on PT
Why is the periodic table so awesome
It organizes elements into order by their number of protons (atomic number) and also groups them in areas by similar properties.
what most of the atom is between the nucleus and electrons
what is mixed/combined in a chemical reaction; everything to the left of the arrow
what is produced in a chemical reaction, everything to the right of the arrow
small number below and following element; tells you how many ATOMS of that element there are
large number in front of chemical symbol/formula; tells you how many MOLECULES of that substance there is
existing in or caused by nature; not made or caused by humankind
materials that don't occur in nature, but are made from natural resources that undergo a chemical change.
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