2. Atoms & Elements

Which of the following elements is a non-metal located in group 6A or 7A of the periodic table with atomic number less than 40?

Which of the following elements is considered the most reactive on the periodic table?

Alkali metals, alkaline earth metals, and halogens are elements found respectively in which groups of the periodic table?

Which of the following elements is classified as a halogen?

Where are the noble metals generally located on the periodic table?

Which element has chemical properties that are most similar to those of calcium?

Which of the following elements is a semimetal located in group 5A of the periodic table?

Which element would most likely have chemical properties similar to that of fluorine (F)?

Which of the following elements is the most reactive among the alkali metals?

Which of the following best describes the main similarity among elements in Group 2 of the periodic table?

Which two groups on the periodic table are considered the most reactive?

Which characteristic is shared by all elements in group 18 (8A) of the periodic table?

Which group of elements on the periodic table exhibits properties of both metals and nonmetals?

Which group of the periodic table is generally more chemically reactive: Group 16 (chalcogens) or Group 17 (halogens)?

Which family on the periodic table has a full outer electron shell?