Atoms and the Periodic Table Study Guide

Which of the following is the basic unit of matter and the smallest indivisible particle of an element?

• Atom

• Cell

• Electron

• Molecule

A horizontal row on the periodic table is called a __________.

• Period

• Group

• Family

• Collection

The number of protons in an atom is equal to the __________.

• Atomic number

• Atomic mass

• Number of neutrons

• Number of nuclei

In this periodic table, which group is shaded orange?

• Metals

• Nonmetals

• Metalloids

Aluminum (Al) has an atomic mass of 27. Its atomic number is 13. How many neutrons are in an Aluminum atom?

• 13

• 27

• 14

• 5

Which of the following groups are found on the "Stair-step" of the periodic table?

• Metals

• Nonmetals

• Metalloids

Which of the following is NOT a common characteristic of metals?

• Good conductors

• Brittle

• Malleable

• Luster

A vertical column on the periodic table is known as a __________.

• Period

• Group

• Collection

• Team

Which of the following is NOT a part of an atom nucleus?

• Neutron

• Electron

• Proton

Electrons are known to have a positive charge.

• True

• False