The Periodic Table Review

Which number determines how the Periodic Table is arranged?

• Atomic number

• Atomic mass

• Number of Neutrons

• Number of ions

The periodic table is organized in horizontal rows called...

• Groups

• Periods

• Families

• Chemical Symbols

The vertical columns of the periodic table are called...

• Periods

• Atomic number

• Groups

• Valence electrons

All of the elements in the same period have the same number of...

• Valence electrons

• Atomic number

• Atomic mass

• Energy shells

All of the elements in the same group have the same number of...

• Valence electrons

• Atomic number

• Atomic mass

• Energy shells

What are valence electrons?

• Electrons with a positive charge.

• The same as the number of protons.

• Electrons in the outermost energy level.

• The total number of electrons.

The letter, C, is a ... of carbon.

• Name

• Nickname

• Chemical symbol

• Pseudonym

Which of the following atomic symbols for bromine is written correctly?

• bR

• Br

• BR

• br

A negatively charged subatomic particle that orbits the nucleus of an atom.

• electron

• neutron

• proton

• matter

One of several forms of a single element, which contains the same number of protons, but different numbers of neutrons.

• nucleus

• isotope

• orbital

• ion