Chemistry Fall Final Quiz

A chemical symbol represents the ____ of an element.

• name

• reaction

• group

• structure

Horizontal rows of the periodic table are called ____.

• clusters

• families

• groups

• periods

Hydrogen is grouped with the alkali metals because it ____.

• does not readily form compounds

• has one electron in its outer energy level

• is a gas

• is a metal

Tags

NGSS.HS-PS1-1

A family of elements that has two electrons in its outer energy level is the ____.

• actinides

• alkali metals

• alkaline earth metals

• halogens

Tags

NGSS.HS-PS1-1

Dot diagrams are used to represent ____.

• atomic numbers

• atomic mass

• isotopes

• outer level electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Atoms of the same element with different numbers of neutrons are called ____.

• isotopes

• metalloids

• metals

• radioactive elements

Tags

NGSS.HS-PS1-8

A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass number is ____.

• 26

• 30

• 52

• 56

Tags

NGSS.MS-PS1-1

The noble gases are in ____.

• Group 18

• Group 1

• Group 2

• Group 13

Elements that lie along the stair-step line of the periodic table are ____.

• liquids

• metalloids

• metals

• radioactive

A family of elements that contains the most reactive metals is the ____.

• noble gases

• alkali metals

• alkaline earth metals

• transition elements