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Chemistry, 22.06.2019 04:30
Using the periodic table, complete the table to describe each atom. type in your answers
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Chemistry, 22.06.2019 05:00
1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
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Chemistry, 22.06.2019 07:00
The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f
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Chemistry, 22.06.2019 09:00
Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology
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Mathematics, 19.05.2021 07:40
History, 19.05.2021 07:40
Mathematics, 19.05.2021 07:40
History, 19.05.2021 07:40
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Mathematics, 19.05.2021 07:40
Mathematics, 19.05.2021 07:50
Mathematics, 19.05.2021 07:50
Mathematics, 19.05.2021 07:50
Mathematics, 19.05.2021 07:50
History, 19.05.2021 07:50
Mathematics, 19.05.2021 07:50