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What is the subscript
The number of atoms
Increasing the temperature
increases the rate of reaction
Matter is made of
Atom
The last group of the periodic table is called
Noble gases
Negatively charged particle
Electrons
What is the symbol for gold
Au
Decreasing concentration
Decreasing rate of reaction
Everything that is not energy is
Matter
How is the Periodic table organized
By atomic number
Positively charged particles
Protons
What is the atomic number of Oxygen
1
What is an exothermic reaction
exothermic energy releases energy
A variation of an element
Isotope
Who created the periodic table
Mendeleev
Particles that have no charge
Neutron
What is most of your body made of
Oxygen
What is an endothermic energy
Endothermic energy absorbs energy
A row of elements in the periodic table
Period
When Mendeleev created the periodic table how did he arrange it
By atomic Mass
Protons of atoms are represented on the periodic table as
The atomic mass
The flow of electrons is
Electricity
What are the Coefficients
The Coefficient is the number of molecules
A column in the periodic table
Group
How many groups are there
18
How do you find the mass of neutrons in an element
Atomic mass - number of protons = Neutrons mass