Periodic Table Arrangement

What is the outermost set of electrons in an atom called?

• Valence electrons

• Nucleus electrons

• Proton electrons

• Neutron electrons

Which group of elements in the periodic table are generally unreactive?

• Group 1

• Group 2

• Group 17

• Group 18

What determines the chemical reactivity of an element?

• Number of protons

• Number of neutrons

• Number of valence electrons

• Number of electrons in the nucleus

What is the name given to the elements in group 17 of the periodic table?

• Noble gases

• Alkali metals

• Halogens

• Transition metals

What are rows in the periodic table called?

• Groups

• Periods

What do repeating patterns of physical and chemical properties help with?

• Organizing the periodic table

• Creating new elements

• Predicting atomic mass

• Studying noble gases

What are columns in the periodic table called?

• Periods

• Groups

What is the smallest unit of a chemical element that retains its chemical properties?

• Atom

• Molecule

• Electron

• Proton

Tags

NGSS.MS-PS1-1

What is the name given to the elements in group 1 of the periodic table?

• Alkali metals

• Noble gases

• Halogens

• Transition metals

Which group of elements in the periodic table are known as alkali metals?

• Group 1

• Group 2

• Group 17

• Group 18