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atoms
chapter 3
Term | Definition |
---|---|
matter | everything that has mass and takes up space |
element | the ingredients that make up all other substances can,t be broken down into other substances |
metals | good conducters of electricity and heat can be bend without breaking |
nonemetals | do not conduct heat/electricity very well may be a gas or a solid |
semi-metals | sometimes like metals and sometimes like nonemetals |
atom | the smallest part of an element that still acts like a element |
atomic theory | states that everything is made of atoms |
compound | a type of matter made of two or more elements |
molecule | smallest particle of a compound that still acts like a compound |
proton | |
neutron | no charge. found in the nucleus |
electron | negative charge.orbits the nucleus |
solid | particles are very close and move slow |
liquid | particles are little bit sepret and move a little faster |
gas | particles are very far apart and moving super fast |