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C1S2B2
Atoms, Bonding, and the Periodic Table
Question | Answer |
---|---|
valence electrons | electrons in the highest energy level that are held most loosely |
electron dot diagram | the symbol for the elements surrounded by dots |
chemical bond | the force of attraction that holds two atoms together as a result of the rearrangement of electrons between them |
symbol | represents an element |
atomic number | the number of protons in the nucleus of an atom |
period | a row of elements across the periodic table |
group/family | elements in the same column |
noble gasses | group 18 elements |
halogens | group 17 elements |
alkali metals | group 1 elements |