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Periodic table
Question | Answer |
---|---|
what is the atomic number of hydrogen | 1 |
what is atomic number | the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table. |
what are Valence Electrons | Electrons that are the farthest from the nucleus: help atoms bond with other atoms. |
what are Noble Gases | Family 18, Do not Bond |
what are Halogens | Family 17, like to bond with Alkali Metals to Form Salts |
what are Rare Earth Elements | |
what are Transition Metals |