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Atomic Theory

atomic theory scientific explanation of the structure of atoms and how they interact with other atoms.
What are the building blocks of all matter called? Atoms
In current atomic theory, what are atoms mostly? Empty space
What is the center of an atom called? Nucleus
What is a nucleus? Small, dense core of an atom
What is a nucleus surrounded by? electrons
Atom Smallest Unit of an element that maintains the properties of that element.
Proton a positively charged particle found in the nucleus of an atom
Neutrons particles found in the nucleus, has NO charge
Electrons negatively charged particles that speed through an area around the nucleus called the electron cloud
element type of matter mad of just one kind of atom
elements can not be broken into simpler substances.
the atoms of an element All Have the same number of protons
Number of protons the number of protons is unique to a specific element. No other element will have the exact same number of protons.
Why can electrons be gained or lost? Electrons are far from the nucleus
Can atoms of the same element have different number of neutrons Yes, but the protons remain the same.
Give examples of elements neon, mercury, chlorine, silver, copper
Molecule Made up of two or more atoms joined together chemically
Compound a substance formed by atoms from two or more elements.
Properties of a compound often different from the properties of the elements that form it.
Created by: slhanlon