Periodic Trends Warm Up

Match the following periodic trends with their correct definition:

• The distance between two atomic nuclei

• Electronegativity

• The energy required to remove an electron from an atom

• Metallic Properties

• Physical and Chemical properties of met

• Reactivity

• An atom’s ability to attract electrons

• Ionization Energy

• The ability of an element to undergo a chemical reaction

• Atomic Radius

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Match the family name to the correct group number

• 17 (7A)

• Alkali Metals

• 1

• Transition Metals

• B groups

• Noble Gases

• 18 (8A)

• Alkaline Earth Metals

• 2

• Halogens

Draw the Atomic Radii trend using an arrow:

Draw the Electronegativity trend using an arrow:

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Draw the Ionization Energy trend using an arrow:

Tags

NGSS.HS-PS1-1

Draw the Metallic Properties trend using an arrow:

Draw the METAL and NONMETAL reactivity trends using an arrow and label:

(a)   Are ions that are positively charged because they lost electrons. They mostly consist of metals. ​ (b)   Are ions that are negatively charged because they gained electrons. They mostly consist of non-metals. ​ (c)   Are atoms that gain or lose electrons resulting in a positive or negative charge.

• Cations
• Anions
• Ions
• Protons
• Neutrons
• Electrons

An unknown element has similar chemical properties as Lithium and Sodium. The unknown element has a greater mass that Gold but a lesser mass than Radium. The unknown element is also considered the most reactive metal on the Periodic Table. What is the unknown element?