Periodic Table Trends

Electronegativity __________ across a period and __________ down a group.

• decreases, increases

• stays the same in both directions

• increases, decreases

Atomic radius generally increases as we move __________ and decreases as we move ______________.

• down a group ; across a period

• up a group ; across a period

• stays the same in both directions

Vertical columns of elements (these are also known as a "family") - they also have the same number of valence electrons and are known as ________________.

• groups

• periods

• quadrants

• rows

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The horizontal rows on the periodic table, which indicate the number of energy levels/orbitals that an atom has, are called ___________.

• Periods

• Element

• Atomic Number

• Group

Which element would have the same number of energy levels or orbitals as Zinc?

• Cadmium

• Krypton

• Silver

• Tin

Tags

NGSS.HS-PS1-1

Ionization energy ____________ as we move across a period and _____________ as we move down a group.

• decreases ; Increases

• increases ; decreases

• stays the same for both directions

Which of these elements has the greatest atomic radius? 

• H
• N
• Cl
• Cs

Tags

NGSS.HS-PS1-1

The symbols W, X, Y, and Z represent four elements shown on the outline of a periodic table.
Which element has the highest electronegativity?

• W
• X
• Y
• Z

Tags

NGSS.HS-PS1-1

Which atom has the largest atomic radius?

• potassium

• rubidium

• francium

• cesium

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. 

Tags

NGSS.HS-PS1-1