Flashcards
Vocabulary: Atoms and Elements
Cards in this deck (25)
- 1alkali metalelements of Group 1A except for hydrogen; these metals are soft and shiny
- 2Alkaline Earth Metalsfound ing Group 2A
- 3Atomthe smallest particle of an element that retains characteristics of an element
- 4Atomic Mass(amu)a small mass unit used to describe the mass of very small particles such as atoms and subatomic particles
- 5Atomic numbera number that is equal to the number of protons in an atom
- 6Atomic Symbolan abbreviation used to indicate the mass number and atomic number of an isotope
- 7Chemical Symbolan abbreviation that represents the name of an element
- 8Electronnegatively charged subatomic particle; e-
- 9Groupa vertical column in the periodic table; elements in a group have similar phys and chem properties
- 10Group Numbera number that appears at the top of each group
- 11HalogensGroup 7A (17)
- 12What elements are in the Halogen group?fluorine,chlorine, bromine, iodine, and astatine.
- 13Isotopean atom that has a different mass number from the rest of the atoms of the same elements; have the same atomic # but different amount of neutrons
- 14Mass Numberthe total number of protons and neutrons in an atom
- 15Metalan element that is shiny, malleable, ductile, and conducts heat and electricity. These elements are located left of the zig zag on periodic table
- 16Metalloidelements that have properties of both metals and nonmetals located along the zig zag on periodic table
- 17Neutronhas mass of 1 amu; found in nucleus and has no charge; represented by n
- 18Noble Gaselements in group 8A (18); generally unreactive and usually cannot be found in combination with other elements
- 19Nonmetalnot shiny and poor conductor; located on the right of zig zag
- 20Nucleuscenter of the atom which contains the protons and atoms
- 21Periodhorizontal row of elements
- 22ProtonPositively charged subatomic particle with a mass of one amu
- 23Representative elementfound in Group 1A (1) through 8A (18) excluding B groups (3-12)
- 24Subatomic Particlea particle within an atom
- 25Transition elementlocated between Group 2A (2) and 3A (13)
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- Intro Chemistry Flashcards on Vocabulary: Atoms and Elements , created by devibabyy66 on 12/06/2014.
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