Trends and Configuration Quiz

What is the ending to the Mg electron configuration?

• 2s1 

• 3s2

• 2p6

• 3p1

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

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

• Helium (He)
• Titanium (Ti)
• Calcium (Ca)
• Magnesium (Mg)

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵
• 1s²2s²2p⁴
• 1s²2s²2p⁶
• 1s²2s²2p⁶3s²3p⁶4s²3d¹

Electrons fill energy levels and sublevels _____ in energy first.

• lower

• higher

How many valence electrons does Chlorine have?

• 5
• 2
• 7
• 5

Which orbital shows a violation of the Pauli Exclusion Principle?

• A
• B
• C
• D

What do you start electron configuration with?

• 1s²
• 1d¹⁰
• 1f¹⁴
• 1p⁶

The energy required to remove electrons is the definition of:

• Electronegativity

• Atomic Number

• Atomic Radius

• Ionization Energy

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

• decreases, increases

• increases, increases

• increases, decreases

• stays the same, increases