words i need to know for bio
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Atomic Number | Number of protons in an atom of a particular element.
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| Isotopes | Atoms of an element that have the same atomic number but a different mass number.
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| Electrons | Light negatively charged particles that orbit around the nucleus.
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| Chemical Bonds | The attraction, sharing, or transfer of outer shell electrons from one atom to another that hold molecules together.
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| Molecules | made of atoms that have combined chemically.
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| Compounds | molecules made from more than one type of atom.
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| Subscript | The number of atoms of each element in a molecule.
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| Structural Formula | Formula which represents the atoms and bonding within a molecule (e.g., H-H). The line represents a shared pair of electrons.
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| Molecular/chemical Formula | Formula which indicates the number and type of atoms (e.g., H2)
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| Covalent Bond | Chemical bond between atoms formed by sharing a pair of valence electrons.
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| Single Covalent Bond | Bond between atoms formed by sharing a single pair of valence electrons.
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| Double Covalent Bond | Bond formed when atoms share two pairs of valence electrons
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| Triple Covalent Bond | Bond formed when atoms share three pairs of valence electrons
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| Electronegativity | Atom's ability to attract and hold electrons.
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| Non-Polar Covalent Bond | Covalent bond formed by an equal sharing of electrons between atoms.
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| Polar Covalent Bond | Covalent bond formed by an unequal sharing of electrons between atoms.
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| Ion | Charged atom or molecule.
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| Ionic Bond | Bond formed by the electrostatic attraction after the complete transfer of an electron from a donor atom to an acceptor.
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| Element | A substance that cannot be broken down into simpler substances by chemical reactions.
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| Atom | Smallest possible unit of an element that retains the physical and chemical properties of its element.
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| Atomic Number | Number of protons in an atom of a particular element.
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| Atomic Mass | Number of protons and neutrons in an atom
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| Isotopes | Atoms of an element that have the same atomic number but different mass number.
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| Electrons | Light negatively charged particles that orbit around nucleus.
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| Protons | Positively charged particles that are in the nucleus of the atom
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| Neutrons | Particles that have no charge and are in the nucleus of the atom
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| Nucleus | The center of the atom
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Created by:
katbea1
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