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How many protons are there in one atom of uranium? 

The table below describes four atoms Atom A Atom B Atom C Atom D Number of protons 79 80 80 79 Number of neutrons 118 120 118 120 Number of electrons 79 80 80 79  Which atoms represent the same element?

Select True or False: The formula of hydrochloric acid is HCl(aq)

What is the formula for dinitrogen monoxide? 

Which of the following is an example of an anion that contains a metal? 

Select True or False: The formula of sulfuric acid is H2SO4 (aq) 

Consider a neutral atom of the following isotope of sulfur: How many electrons, protons, and neutrons does the atom contain?

How many protons are there in one atom of magnesium? 

Use the periodic table above to locate where the alkaline earth metals are located. 

Write the adjectives in parentheses with their correct endings into the blanks. Read the sentence, and determine whether the adjective is part of the subject (subject case),  the direct object (accusative) or indirect object (dative). Then apply the required adjective ending. ———– 1. Der [1] (rot) Pullover gefällt mir. 2. Die [2] (blau) Jacke ist sehr teuer. 3. Wir sind durch die [3] (eng) Straßen von Meersburg gegangen. 4. Die [4] (ausländisch) Studenten wohnen im Studentenwohnheim. 5. Er wohnt in diesem [5] (alt) Haus.