Trends Review Warm Up

Choose the set that goes from lowest to highest electronegativity?

• Cu, Mg, Sr, Ca
• F, Cl, Br, Si
• Cs, Rb, Ca, Mg
• Zn, Cd, Ag, Cu

Electronegativity is...

• how good an atom is at attracting 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. 

The element with the largest electronegativity in the halogens is - 

• At
• F
• Cl
• Br

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.
• The atoms have more protons.
• The atoms have more energy levels
• The atoms have more nuetrons

As you move across the periodic table atoms tend to get smaller because, ______________.

• the atoms have more mass.
• the atoms have less mass
• the atoms have more protons.
• the atoms have less electrons.

Which of the following will have a larger radius than Zinc?

• Gallium
• Aluminum
• Magnesium
• Strontium

Which periodic group has the smallest atomic radius?

• Alkali metals
• Halogens
• Noble Gases
• Transition metals

An atom that has the electron configuration of 1s²2s²2p⁶3s²3p⁶4s²3d⁵ is classified as

• A transition element
• a noble gas
• an alkali metal
• an alkaline earth metal

What is this element? 
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

• Argon
• Krypton
• Selenium
• Bromide

The graph above shows the ionization energy values as the elements are arranged on the periodic table. Which conclusion cannot be drawn from the graph?

• The ionization energy drops significantly as you move down a group because the valence electrons are in a shell further from the nucleus.
• The ionization energy increases gradually as you move right across a period because the valence electrons are in a shell further from the nucleus.
• The ionization energy increases gradually as you move right across a period because you are adding more protons.
• The ionization energy increases when the valence electrons are more attracted to the nucleus.