Periodic Table and Reactivity Quiz

What are the three basic parts of an atom?

• Protons, neutrons, electrons

• Valence electrons, energy levels, shells

• Metals, nonmetals, metalloids

• Periods, groups, reactivity

Tags

NGSS.MS-PS1-1

Where are valence electrons located?

• In the nucleus

• In the electron cloud

• In the energy levels

• In the shells

How do valence electrons determine an atom's chemical properties?

• By determining the number of energy levels

• By determining the number of protons

• By participating in chemical bonds

• By increasing atomic mass

How are elements classified on the periodic table?

• By atomic number

• By atomic mass

• By valence electrons

• By reactivity

What is the atomic mass of an atom?

• The sum of protons and neutrons

• The number of valence electrons

• The number of energy levels

• The number of shells

How many valence electrons does copper have?

• Zero

• One

• Two

• Three

Tags

NGSS.HS-PS1-1

What is the most reactive group on the periodic table?

• Group 1

• Group 8

• Group 15

• Group 18

Which group of elements is the most stable?

• Group 1

• Group 8

• Group 15

• Group 18

What is the term for elements that have properties of both metals and nonmetals?

• Metals

• Nonmetals

• Metalloids

• Valence electrons

Which element is considered stable with only two valence electrons?

• Hydrogen

• Oxygen

• Helium

• Carbon