Identify 1
Identify 2
Facts 1
Facts 2
Compounds
100
anything that takes up space and has mass
matter
100
the tiny extremely dense core at the center of an atom
nucleus
100
most metals are in what state of matter
solid
100
the colorless, odorless gas that makes up 78% of the earths atmosphere is
nitrogen
100
hardest of all known substance
diamond
200
the amount of matter that makes up an object
mass
200
Name one particle that makes up the nucleus
protons or neutrons
200
The densest of the common metals is
lead
200
the halogen that is added to table salt to prevent deficiency disease is
iodine
200
a compound made of charged atoms
ionic compound
300
the amount of matter in one unit of volume
density
300
name the other particle that makes up the nucleus
proton or neutron
300
the semimetal that is used to make computer chips is called ?
silicon
300
The halogen that is useful as a bleach and a germ killing agent is
chlorine
300
the rapid reaction of any substance with oxygen
combustion
400
the measure of the pull of gravity on an object
weight
400
the metric unit that is used to measure an object's mass
gram
400
the only metal that is liquid at room temperature
mercury
400
the halogen that is added to toothpaste and drinking water is
flourine
400
a compound made of molecules
molecular compound
500
the tiny particles of which all matter is composed
atoms
500
the tiny particles that swarm at tremendous speeds around the core of an atom
electron
500
the element that is the basic building block of all compounds is
carbon
500
A very hard metal which is an important ingredient in stainless steel is
chromium
500
a process in which atoms of elements or compounds are rearranged to form new substances
chemical reaction
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