Periodic Table Trends

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

NGSS.HS-PS1-2

Which one of the following atoms has the smallest radius?

• O

• F

• S

• Cl

Tags

NGSS.HS-PS1-1

Which one of the following atoms has the largest radius?

• Cs

• Al

• Be

• Ne

Of the following, which gives the correct order for atomic radius from greatest to least?

• Mg > Na > P > Si > Ar

• Ar > Si > P > Na > Mg

• Si > P > Ar > Na > Mg

• Na > Mg > Si > P > Ar

Tags

NGSS.HS-PS1-1

Which of the following correctly lists the five atoms in order of increasing size (smallest to largest)?

• O < F < S < Mg < Ba

• F < O < S < Mg < Ba

• F < O < S < Ba < Mg

• F < S < O < Mg < Ba

If an electron is removed from a sodium (Na) atom, what charge does the Na cation have?

• +1

• +3

• -1

• -3

Of the elements below, __________ has the largest first ionization energy.

• Li

• K

• Rb

• H

Tags

NGSS.HS-PS1-1

The ability of an atom in a molecule to attract electrons is best quantified by its __________.

• Atomic Radius

• Ionization Energy

• Electronegativity

• Metallic Character

Which of the following correctly ranks the elements from highest to lowest electronegativity?

• Cl > S > P

• Br > Cl > F

• K > Na > Li

• N > O > F

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Of the elements below, ____ is the most metallic.

• Sodium

• Magnesium

• Calcium

• Cesium

Tags

NGSS.HS-PS1-1