Elements Vocabulary
Terms
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- *blank* is the joining of atoms to form new substances.
- Chemical bonding
- *blank* is the force of attraction that holds two atoms together.
- Chemical bond
- *blank* is a unifying explanation for a broad range of hypotheses and observations that have been supported by testing.
- Theory
- *blank* are the electrons in the outermost shell of an atom.
- Valence electrons
- *blank* is the force of attraction between oppositely charged ions.
- ionic bond
- A *blank* is a repeating three-dimensional (3-D) pattern of ions.
- crystal lattice
- *blank* is the force of attraction between the nuclei of the atoms and the electrons shared by the atoms.
- Covalent bond
- A *blank* is a neutral group of atoms held together by covalent bonds.
- molecule
- A *blank* is the attraction between a positively charged metal ion and the electrons in metals.
- Metallic bond
- Having a regular repeating pattern is *blank*
- periodic
- *blank* are the horizontal rows of elements on the periodic table.
- periods
- *blank* are the collumns of elements on the periodic table.
- groups
- The average number of protons and neutrons in the nucleus is the *blank*.
- atomic mass
- The number of protons in the nucleus of an atom is the *blank*.
- atomic number
- The exact number of protons and neutrons in the nucleus is the *blank*.
- mass number
- A *blank* atom is an atom with an equal number of protons and electrons.
- stable