Chemistry Basics Quiz

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Questions and Answers

Match the following terms with their definitions:

Matter = A substance that cannot be broken down into another substance by ordinary chemical means Element = Anything that has mass and takes up space Atom = A chart of the elements arranged according to their properties Periodic table = Smallest portion of an element that retains its chemical properties

Match the following terms with their definitions:

Isotope = Atoms of the same element that have the same number of protons and neutrons Chemical bond = Atoms of the same element that have the same number of protons but a different number of neutrons Molecule = Forces of attraction that hold atoms together Compound = Two or more atoms joined together

Match the following terms with their definitions:

Ionic bond = A bond formed when atoms share electrons in order to have a completed valence shell Covalent bond = A bond formed when atoms are held together by the attraction between opposite charges Polar molecule = A molecule that has an equal number of electrons and protons Molecule = Two or more different atoms joined together

Match the following terms with their definitions:

<p>Atom = Smallest portion of an element that retains its chemical properties Molecule = Anything that has mass and takes up space Element = A chart of the elements arranged according to their properties Matter = Two or more atoms joined together</p> Signup and view all the answers

Match the following terms with their definitions:

<p>Polar molecule = A bond formed when atoms share electrons in order to have a completed valence shell Ionic bond = Electrically neutral molecule with a partial positive pole and a partial negative pole Covalent bond = A bond formed when atoms are held together by the attraction between opposite charges Compound = Two or more different atoms joined together</p> Signup and view all the answers

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Study Notes

Properties of Matter

  • Matter has mass and takes up space.

Elements and Atoms

  • An element is a substance that cannot be broken down into another substance by ordinary chemical means.
  • An atom is the smallest portion of an element that retains its chemical properties.

Periodic Table

  • The periodic table is a chart of the elements arranged according to their properties.

Isotopes

  • Isotopes are atoms of the same element that have the same number of protons but a different number of neutrons.

Chemical Bonds

  • Chemical bonds are forces of attraction that hold atoms together.

Molecules and Compounds

  • A molecule is two or more atoms joined together.
  • A compound is two or more different atoms joined together.

Types of Chemical Bonds

  • Ionic bond: a bond formed when atoms are held together by the attraction between opposite charges.
  • Covalent bond: a bond formed when atoms share electrons in order to have a completed valence shell.

Polar Molecules

  • A polar molecule is an electrically neutral molecule with a partial positive pole and a partial negative pole.

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