Electron Config. & Periodic Trends w/ Justification

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

The atom with the largest atomic radius in Group 18 is - 

• Ar
• He
• Kr
• Rn

Tags

NGSS.HS-PS1-1

The energy required to remove electrons is the definition of: 

• Electronegativity
• Atomic Number
• Atomic Radius
• Ionization

Atomic Radius is...

• 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

Ionization energy is...

• 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

Tags

NGSS.HS-PS1-2

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

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

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following will have a higher ionization energy than arsenic (As)?

• Gallium (Ga)
• Neon (Ne)
• Antimony (Sb)
• Germanium (Ge)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What term is used to describe "The energy required to remove an electron from gaseous atoms"

• excitation energy
• ionization energy
• polarization energy
• electrolytic energy 

What term is used to describe "A measure of the size of an atom"

• chemical reactivity
• atomic radius
• energy levels
• orbit

Sodium (Na) and potassium (K) are in the same group on the periodic table. Based on their locations, which statement about sodium and potassium is true?

• Sodium is less electronegative than potassium. 
• Sodium has fewer energy levels than potassium. 
• Sodium has a larger ionic radius than potassium. 
• Sodium has lower ionization energy than potassium. 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2