Periodic Trends

As you move down a group, atomic radius increases because - 

• you add more and more neutrons
• you add more and more protons
• you add more and more shells (energy levels)
• you add more atomic mass

As you move across the periodic table from left to right, the atomic radius decreases.  This is because - 

• the number of protons increases, so attraction to electrons increases
• the number of energy levels increases
• the number of electrons increases
• the atomic mass increases

What is the name of family I

• Alkaline Earth Metals
• Boron Family
• Alkali Metals
• Halogen Family

Elements in d-block are also known as the __________.

• Inner Metals

• Transition Metals

• Weirdos

• Changelings

Families all have similar 

• Names
• atomic numbers
• atomic masses
• properties

Electronegativity is...

• the ability of an atom to attract/ accept electrons
• the ability of an atom to lose electrons
• the energy required to remove an electron from a specific atom
• how easy it is to make friends. 

Electronegativity __________ from left to right across a period and __________ from top to bottom down a group.

• decreases, increases

• increases, increases

• increases, decreases

• stays the same, increases

Ionization energy is defined as ____.

• the energy required to add an electron to a specific atom

• how much energy it takes to remove an electron from an atom

• the energy required to shield the outer electrons from the nucleus

• a measure of the ability of an atom to attract electrons

Atomic radius is defined as ____.

• the relative size of the atom's nucleus

• the relative size of the atom's electron cloud

• the energy required to shield the outer electrons from the nucleus

• a measure of the ability of an atom to attract electrons

Which of the following will have a lower ionization energy than scandium (Sc)?

• Helium (He)

• Titanium (Ti)

• Calcium (Ca)

• Magnesium (Mg)