2. Atoms & Elements

Where are the most reactive nonmetal elements located on the periodic table?

How did Dmitri Mendeleev organize the elements in his periodic table?

Which group of elements is located between the metals and the nonmetals on the periodic table?

Where are metals primarily located on the periodic table?

Which of the following is a property of a nonmetallic element?

Which of the following best describes how the modern periodic table is arranged?

How many elements occur naturally on the periodic table?

Where are metalloids located on the periodic table?

Which of the following sets of elements has the most similar physical and chemical properties?

Which of the following is a key feature of the modern periodic table?

Which of the following lists correctly names the three general categories into which elements on the periodic table are divided?

Why are the elements arranged in the periodic table in their specific order?

Where are the metals primarily located on the periodic table?

Which of the following elements is not a metal?

Why did Mendeleev switch the order of some elements in his periodic table, even though it contradicted their increasing atomic masses?