2. Atoms & Elements

How many groups are present in the modern periodic table?

To which group of the periodic table does iodine belong?

Which element is the only metalloid with 3 valence electrons?

Which term is used to refer to the columns on the periodic table?

Which of the following elements is classified as a noble gas?

Which family on the periodic table is considered the least reactive?

Which list consists of elements that have the most similar chemical properties?

Which of the following elements is classified as a halogen?

Which of the following elements is an almost completely nonreactive nonmetal, similar to argon?

Which pair of elements would likely have similar valency and thus similar chemical behavior?

Which group of elements is extremely reactive and reacts strongly with water?

Which of the following elements is an alkaline earth metal?

Which of the following best describes the chief characteristic of the noble gases?

Which of the following is the atomic number of the second noble gas in the periodic table?

Which term is used to describe a compound that contains at least one element from group 17 of the periodic table?