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Biology part2

QuestionAnswer
Substances that cannot be broken down or converted into another substance. An element
The basic unit of matter made up of subatomic paticles. An atom
What are the 3 subatomic particles? Protons, elctrons, and neutrons
What makes up the atomic number? Protons and electrons
What are electrons in the outer shell called? Valence electrons
Isotopes are? Radioactive; occur when the neutrons of an element increase.
What are 2 types of chemical bonds? Ionic bonds; the giving and taking of electrons Covalent bonds; share electrons
A negative ion is a ________? Anion
A positive ion is a ________? Cation
Ions have different numbers of _______. Electrons
What is a polar covalent bond? A bond where atoms do not share electrons equally.
What is a non polar covalent bond? A bond where atoms share electrons equally; no partial changes.
Created by: alexandrat011
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