Periodic Trends

Ionization energy is the...

• energy needed to remove the outermost electron.
• ability of an atom to attract electrons from another atom.

Tags

NGSS.HS-PS1-1

Electronegativity is the...

• energy needed to remove the outermost electron.
• ability of an atom to attract electrons from another atom.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

Which element has the greatest electronegativity: Nitrogen (N) or Arsenic (As)?

• Nitrogen (N)
• Arsenic (As)

Tags

NGSS.HS-PS1-1

Which element has the greatest ionization energy: Aluminum (Al)    or    Chlorine (Cl)?

• Aluminum (Al)
• Chlorine (Cl)

Tags

NGSS.HS-PS1-1

Which element has the smaller atomic radius: potassium (K) or bromine (Br)?

• potassium (K)
• bromine (Br)

Tags

NGSS.HS-PS1-1

Atomic radius generally increases as we move __________.  

• down a group and from right to left across a period 
• up a group and from left to right across a period 
• down a group and from left to right across a period 
• up a group and from right to left across a period 

Tags

NGSS.HS-PS1-1

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

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• chemical reactivity
• atomic radius
• energy levels
• orbit

Atoms that have a high electronegativity, _______________.

• give up their electrons more easily.
• hold on to their electrons more tightly.
• have more electron shells.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2