Periodic Table Test

Atoms of elements in the same group of the periodic table share similar

• number of energy levels

• physical properties

• atomic numbers

• atomic masses

An atom is neutral because

• neutrons balance the protons and electrons

• nuclear forces stabilize the charges

• the numbers of protons and electrons are equal

• the numbers of protons and neutrons are equal

Which statement about the arrangement of the periodic table is true?

• Noble gases are in the group farthest to the left

• Metals are found on the right side of the periodic table

• Metalloids are in the first column on the left

• Transition metals are in the middle of the periodic table

Boron, carbon, nitrogen and oxygen are all members of the same .

• Family

• Period

• Group

• Valence level

Which of these elements would most likely be a shiny, gray-colored solid at room temperature, conducts electricity, and dents when hit with a hammer?

• Titanium

• Neon

• Chlorine

• Sulfur

Based on the periodic table, which of the following elements has physical and chemical properties most similar to calcium?

• Magnesium

• Aluminum

• Gallium

• Bromine

At room temperature, most metals are .

• Solids

• Liquids

• Gases

• Plasma

The order of elements in the periodic table that Dmitri Mendeleev created was based on the

• number of protons in the nucleus

• the electric charge of the nucleus

• the number of neutrons in the nucleus

• atomic mass

Which of the following elements is an alkali metal?

• Calcium

• Mercury

• Magnesium

• Sodium

Semiconductors are elements that

• have large atomic masses but small atomic numbers

• do not form compounds

• can conduct heat and electricity but not very well

• are extremely hard