If you shatter glass is it a physical or chemical change
What is physical
100
A ____ is a group of two or more DIFFERENT elements combining to make one substance
What is compound
100
least bond between molecules
What is gas
200
a column on the periodic table
what is a group
200
how many electrons can the first shell hold
What is
2
200
true or false
chemical change means you change the structure
What is true
200
a substance that can no longer be broken down
What is element
200
true or false
H2o goes through ALL the main states of matter
What is true
300
how many elements are there in all
What is 118
300
true or false
a proton goes around on the orbit
What is
False
300
Suzie was mixing two chemicals together one was liquid and on was solid. after 5 hours the two chemicals became sticky and slimy. is this a physical or chemical change.
What is chemical
300
top number in an element
What is atomic number
300
there are ___ states of matter
What is 4
400
how do scientists organize the periodic table
What is by atomic number and similar structure
400
protons and neutrons affect the atom's ____ ____
What is atomic structure
400
you cannot reverse this change
What is chemical change
400
two or more substances not bonded together
What is mixture
400
____ is electrified gas
What is plasma
500
true or false
most elements on the periodic table are man made
What is
false
500
smallest unit of an element
What is atom
500
is dynamite exploding physical or chemical change
What is chemical
500
the substance in the least amount is ____
What is solute
500
____ is the state where gas becomes liquid without becoming solid