Who created the periodic table?

• John Dalton

• Marie Curie

• Dmitri Mendeleev

The periodic table is arranged in order of...

• increasing atomic number

• increasing atomic mass

• decreasing atomic mass

• decreasing atomic number

The atomic number tells you the number of ___ in the nucleus?

The atomic mass of an element is equal to the number of...

• protons and neutrons

• protons and electrons

• protons neutrons and electrons

Groups on the periodic table are arranged...

• vertically

• horizontally

• diagonally

Periods on the periodic table are arranged...

• vertically

• horizontally

• diagonally

At room temperature, most elements are classified as...

• non-metal

• metal

• mettalloids

• halogens

Which of the following are located along a dividing line that looks like a staircase?

• metals

• metalloids

• non-metals

• alkali metals

Which of the following is a property of non-metals?

• malleable (easily reshaped w/o breaking)

• brittle (easily broken)

• ductile (capable of being drown out into a wire or thread)

Which of the following is not a property of metalloids?

• poor conductors of electricity

• have properties of metals & non-metals

• solids at room temperature