Periodic Trends Review

Elements Z and X are compared. Element Z is larger than Element X. Based on this you could say: 

• Element Z is further to the left side of the periodic table
• Element X is closer to the top of the periodic table 
• Element Z and X are probably in the same group 
• A and/or B

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 

The atomic radius of main-group elements generally increases down a group because ________.  

• effective nuclear charge increases down a group
• effective nuclear charge decreases down a group 
• effective nuclear charge zigzags down a group 
• the principal quantum number of the valence orbitals increases

Which one of the following atoms has the largest radius?

• O
• F 
• S
• Cl

Tags

NGSS.HS-PS1-1

Which one of the following atoms has the largest radius?  

• Sr 
• Ca
• K 
• Rb

Tags

NGSS.HS-PS1-1

Which one of the following has the smallest radius?  

• Na 
• Cl 
• P 
• Br

Which one of the following atoms has the largest radius?  

• I 
• Co 
• Ba 
• Sr

Which one of the following elements has the largest atomic radius?  

• Se 
• As 
• S 
• Sb

Which one of the following elements has the largest atomic radius?  

• O 
• F 
• Al  
• P

Tags

NGSS.HS-PS1-1

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

• F < K < Ge < Br < Rb
• F < Ge < Br < K < Rb
• F < K < Br < Ge < Rb
• F < Br < Ge < K < Rb