Periodic Trends

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

• Nitrogen (N)

• Neon (Ne)

• Antimony (Sb)

• Germanium (Ge)

Tags

NGSS.HS-PS1-1

Which of the following will have a lower ionization energy than Sodium (Na)?

• Helium (He)

• Lithium (Li)

• Potassium (K)

• Magnesium (Mg)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which atom has the largest atomic radius?

• potassium
• rubidium 
• francium
• cesium

Tags

NGSS.HS-PS1-1

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 neutrons

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

• the atoms have more mass.

• The atoms have more energy levels, so more distance between the valence electrons and the nucleus, and more shielding

• the atoms have more protons.

• the atoms have less electrons.

Tags

NGSS.HS-PS1-1

Ionization energy is...

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

Electronegativity is...

• how good an atom is at attracting electrons when in a compound
• 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. 

Which statement correctly and completely identifies a trend?

• Atomic radius decreases across a period and increases down a group.
• Electronegativity decreases across a period and decreases down a group.
• Ionization energy increases across a period and increases down a group.
• Ionic radius increases across a period and increases down a group.

Tags

NGSS.HS-PS1-2

The element with the largest electronegativity in the halogens is 

• At
• F
• Cl
• Br

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The element with the lowest electronegativity in Period 3 is 

• Na
• Cl
• Ar
• Mg

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2