smallest particle of all matter or all properties of elements
200
The positively charged part of the atom
What is proton
200
Formula for carbon dioxide
What is CO2
200
Name the first 3 elements
What is hydrogen, helium,lithium
200
What is the most common example matter
What is air
200
The nucleus, electron cloud, proton, electron, and neutron are make up
What is an atom
300
Negatively charged part of the atom
What is electron
300
Silicon and oxygen makes what
What is sand
300
What is the symbol for iodine
What is I
300
What are the 3 subatomic particles.
What is protons electrons and neutrons
300
Definition of mixture
What is More than one element not chemically bonded and form a new substance
400
Who discovered neutrons
What is Chadwick
400
HE is the symbol for what element
What is helium
400
The scientist who made the Law of Conservation of Matter
What is Lavoisier
400
What is the definition of compound
What is More than one element chemically combine and form a new substance
500
the part of a atom that has no charge
What is neutron
500
What is the formula for caffeine
C8H10N4O2
500
What is the law of conservation of matter
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations.
500
Name all the scientist in this unit
What is Democritus, Dalton, Chadwick, Rutherford, Thomson, and Lavoisier