Periodic Table trends

Electronegativity is

• a measure of an atom's temperature
• a measure of an atom's ability to attract electrons in a chemical bond
• a measure of an atom's mass
• a measure of an atom's size

The element with the largest electronegativity in the halogens is

• At
• F
• Cl
• Br

What does electronegativity do as you go across a period?

• decrease

• no pattern

• stay the same

• increase

Why does electronegativity decrease as you go down a group?

• As you go down a group, the outer electrons are further away from the nucleus

• As you go down a group, the electromagnetic force is weakened with increasing electrons

• Both of these

• None of these

When two atoms meet, they will pull on each other's valence electrons. This is called electronegativity. Some pull harder than others. This electron tug of war can result in an electronegativity difference. The value of this difference can tell us the type of bond it creates. Match each bond with it's range in differences.

• Polar Covalent

• 0-0.4

• Ionic

• 1.8+

• Nonpolar Covalent

• 0.4-1.8

Which element has a lower electronegativity value?

• Calcium

• Barium

Elements in the same group or family have _____________.

• the same number of valence electrons and different properties.

• the same number of valence electrons and similar properties

• different number of valence electrons and similar properties.

• different number of valence electrons and different properties.

Which class of elements are malleable, ductile, shiny when clean and polished, good conductors of heat and electricity, and reacts with acids to form hydrogen gas?

• metals

• nonmetals

• metalloids

• ions

What is the name of Group 1 elements?

• Alkali Metals

• Alkaline Earth Metals

• Transition Metals

• Halogens

What is the name of the elements that are unreactive and have a full octet?

• Halogens

• Noble Gases

• Alkali Metals

• Transition Metals