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Science L8 Elements, Compounds, & Mixtures

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  • A positively charged particle, that exists dependently within the nucleus of an atom. 
    Proton
  • What are called the building blocks of matter
    Elements or Atoms
  • True or False, Nitrogen is a Metal?
    False
  • An elementary particle having no charge and equal mass to a proton, found in the nucleus of all atoms except Hydrogen.
    Neutron
  • A heterogenous mixture has all evenly OR unevenly distributed substances in it
  • The product of combining two or more substances that retain their properties. 
    Mixture
  • When two atoms of the same element combine together chemically they form...a diatomic molecule OR a triatomic molecule
    Diatomic Molecule
  • True or False Compounds use some form of energy, usually heat, to transform the elements into a new substance. 
    True
  • A heterogenous mixture has all ___________ distributed substances in it. EVENLY or UNEVENLY
    Unevenly
  • A notation of one or two letters representing a chemical element.
    Symbol
  • What are the horizontal rows on the periodic table called?
    Periods
  • This substance is made up of two or more elements chemically combined?
    Compound
  • True or False Elements in a mixture will keep their properties?
    True
  • Two or more different atoms that combine together to form a….
    Compound
  • The part of an atom where the protons are located is called…
    Nucleus
  • What is another name for the shell that the electrons orbit around, in an atom
    Electron Cloud
  • A single atom or several atoms bound together forming the smallest particle that possesses all the characteristics of an element or compound.
    Molecule
  • A negatively charged particle, that exists independently outside the nucleus of an atom. 
    Electron
  • To what 2 families do the majority of the radioactive elements belong to?
    Lanthanides & Actinides
  • The distribution of electrons of an atom or molecule in their atomic or molecular orbitals.
    Electron Configuration
  • What is the only metal element that is a liquid at room temperature?
    Mercury
  • An element is a simple substance that can be broken down. True OR false
    False
  • The solute is the part of a solution that must be dissolved. True or false
    True
  • What is the name of the Family of elements that contains Oxygen and Hydrogen? Metals or non-metals
    Non-metals
  • Which element is highly reactive, like the Alkali Metals, but isn't in fact a metal at all? Hydrogen OR calcium
    Hydrogen
  • How is a mixture different from a compound?
    A mixture does not create a new substance, each element keeps their original properties. A compound creates a new substance from two other substances.
  • For the compound C6H12O6, identify what elements make up this molecule of glucose, and how many of each.
    6 Carbon, 12 Hydrogen, 6 Oxygen
  • The basic unit of a chemical element, that is made up of protons, electrons, and neutrons.
    Atom
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