Atoms and the Periodic Table Review

A capital letter or a combination of a capital letter and a small letter, used to represent an element, is called a(n):

• Chemical symbol

• Electrons

• Periods

• Isotopes

The horizontal rows of elements are called:

• metals

• groups

• periods

• atomic number

Vertical columns of elements are called:

• metals

• groups

• periods

• atomic number

Elements in the middle of the periodic table, from groups 3 through 12, are called what?

• Alkali earth metals

• Transition metals

• Halogens

• Alkali metals

Atoms of the same element, but with different numbers of neutrons, are called?

• metalloids

• isotopes

• mass number

• atomic number

The center of an atom, where protons and neutrons are located, is the:

• Electron cloud

• Nucleus

• Groups

• Periods

The total count of neutrons and protons in an atom is known as?

• Metalloids

• Isotopes

• Mass number

• Atomic number

Elements that are found on the left side of the periodic table are usually:

• electrons

• metalloids

• metals

• nonmetals

Elements that have some properties of both metals and nonmetals are

• electrons

• metalloids

• metals

• nonmetals

The particles that move around the nucleus and have a negative charge are:

• protons

• neutrons

• electrons

• quarks