Worksheet 4

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Decide whether each pair of elements in the table below will form an ionic compound. If they will, write the empirical formula and name of the compound formed in the spaces provided. empirical formula of ionic Forms ionic element #1 element #2 name of ionic compound compound? compound iodine охудen O yes no bromine barium yes no rubidium magnesium O yes no охудеn rubidium yes no

When potassium fluoride forms from a potassium atom and a fluorine atom an electron is transferred from the potassium atom to the fluorine atom. O an electron is transferred from the fluorine atom to the potassium atom. O a proton is transferred from the fluorine atom to the potassium atom. O a proton is transferred from the potassium atom to the fluorine atom. Question 5 What is the total number of valence electrons present in a NO2 ion?