Periodic Table Quiz

An element that is a very reactive gas is most likely a member of the...

• noble gases

• alkali metals

• halogens

• actinides

Which of the following metals is most reactive?

• Sodium (Na)
• calcium (Ca)
• titanium (Ti)
• All metals have the same reactivity

Alkali metals are the most reactive of all the metals because they have ____ electron(s) in their outer energy level.

• 1
  
• 2
• 7
• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why is hydrogen placed above Group 1 in the periodic table?

• Like Group 1 metals, hydrogen is a metal soft enough to be cut with a knife.
• Like atoms of Group 1 metals, hydrogen atoms have only one electron in their outer level.
• Hydrogen has the same atomic mass as Group 1 metals.
• Hydrogen has the same density as Group 1 metals.

Tags

NGSS.HS-PS1-1

Electrons are found in the third energy level for which of the following elements:

• Hydrogen

• Aluminum

• Boron

• Lithium

Tags

NGSS.HS-PS1-1

True or False: There are more metals than nonmetals on the periodic table.

• True

• False

Valence electrons are...

• the total number of electrons in an atom

• the number of electrons on the first energy shell of an atom

• the number of electrons on the outermost energy shell of an atom

The ______ tells you how many valence electrons an atom has.

• group number

• period number

Which of the following elements would have 2 valence electrons?

• Lithium

• Calcium

• Boron

• Chlorine

The name of the elements in groups 3-12 (middle section) of the periodic table is the...

• Halogens

• Alkali Metals

• Transition Metals

• Solid Metals