Chemistry culminating (Periodic table)
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How many elements are there on the periodic table?
118 elements
What does the atomic number tell us?
This is what is used to organize the elements ( top number, identifying the placement)
What is the atomic mass?
The mass of one atom in the element
What are the diatomic elements?
(H - hydrogen) (O - oxygen) (F - fluorine) (Br - bromine) (I - iodine) (N - nitrogen) (Cl - chlorine)
What are diatomic elements?
Elements that are unstable on there own and have to be joined with others.
What is an atom?
The smallest particle of an element that retains the properties of the element.
What is in the structure of an atom?
Neutrons Protons Electrons
The electron is in ____
Orbit
The protons and neutrons are in the ______
Nucleus
Protons have ___ charge and electrons have ___ charge
Protons have positive charge Electrons negative charge
Neutrons =
Mass # - Atomic #
What are the subatomic particles?
Neutrons Protons Electrons