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Atoms, Bonding, and the Periodic Table
Created by Anita111
Assess Your Understanding on Key Concepts
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What are Valance Electrons?
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The number of valence electrons in each atoms helps determine the_____________of that elementsA. physical properties B. chemical properties C. atomic number D. reactivity
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Chemical properties of an element are determined by what in that element?
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Which Noble Gas has only 2 valence electron?A. Helium B. Hydrogen C. Nitrogen D. Sodium
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Noble gases are the least reactive elements in the periodic table because they all have only (except for Helium)A. 6 valence electrons B. 2 valence electrons C. 8 valence electrons D. isotopes
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Why do the properties of elements change in a regular way across a period?
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Halogens have how many valence electrons?A. 7 B. 2 C. 6 D. 8
Atoms, Bonding, and the Periodic Table (Answer Key)
Created by Anita111
Assess Your Understanding on Key Concepts
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What are Valance Electrons?Electrons in an atom that have the highest energy.
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The number of valence electrons in each atoms helps determine the_____________of that elementsA. physical properties B. chemical properties C. atomic number D. reactivity
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Chemical properties of an element are determined by what in that element?The number of valence electrons in the atoms of that element
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Which Noble Gas has only 2 valence electron?A. Helium B. Hydrogen C. Nitrogen D. Sodium
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Noble gases are the least reactive elements in the periodic table because they all have only (except for Helium)A. 6 valence electrons B. 2 valence electrons C. 8 valence electrons D. isotopes
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Why do the properties of elements change in a regular way across a period?Because the number of vlance electrons changes in a pattern that repeats for each period
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Halogens have how many valence electrons?A. 7 B. 2 C. 6 D. 8
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