Periodic Trends,Lewis Dot, and Electronegativity

What happens to atomic radius as you move left to right on the periodic table?

• It stays the same

• It increases in size

• It decreases in size

Electronegativity is...

• The distance from the center of an atom to its outermost electron

• The strength of the attraction of a shared electron to one of the atoms in the bond

• The energy that is required to remove an electron from an atom.

The correct number of valence electrons for selenium.

• 7

• 6

• 5

• 4

Oxygen has how many bonding sites according to its Lewis Dot structure?

• 6

• 4

• 2

• 1

With the exception of hydrogen, the number of electrons that atoms want to have in their valence electrons is...

• 8

• 6

• 2

• 4

When making a structure the atom with what characteristic is generally the central atom?

• Most valence electrons

• Largest atom

• Smallest atom

• Most bonding sites available

When making a Lewis Dot structure you must first...

• Put a single bond between all atoms

• Add up all the valence electrons belonging to the atoms to know what you are working with.

• Put 8 dots around each of the atoms

• Choose a central atom

If you need more electrons then you have you should...

• Cry and give up

• Leave it, it is okay for it not to match up, it just means there is a charge

• First make one double bond then another until you have enough

• Remove a lone electron pair

An ionic bond means

• The electron is being shared equally between two atoms

• The electron is being pulled more towards one atom than the other

• One atom takes the bonding electron completely

A dipole arrow points towards the atom that is

• Less electronegative

• Larger

• More electronegative

• A metal