Unit 1 Topic 1

Match it! Select the correct answer from the pull down...Good luck!

arrangement of elements by the number of their protons

pure substance with only one type of atom - cannot be broken down

found in the periodic table tile - tells the number of protons of that element

anything that has volume and has mass

an individual part which is the small part of a larger whole

found outside the nucleus

characteristic of matter that can be observed/measured without changing the substance

a particle that is smaller than atom - the components of an atom